restyle add-wallet tabs: 'From' prefix, underline tab style

- Tab labels: 'From Phrase', 'From Key', 'From xprv'
- Visual: bottom-border underline on active tab (not filled buttons)
- Inactive tabs: muted text with hover highlight
- Container: bottom border connects tabs to content area

src/popup/index.html

@@ -56,37 +56,104 @@
                     < Back
                 </button>
                 <h2 class="font-bold mb-2">Add Wallet</h2>
-                <p class="mb-2">
-                    Enter your 12 or 24 word recovery phrase below, or click the
-                    button to roll the die for a new one.
-                </p>
-                <div class="mb-1 flex justify-end">
+
+                <!-- Mode selector tabs -->
+                <div
+                    class="flex border-b border-border mb-3"
+                    id="add-wallet-tabs"
+                >
                     <button
-                        id="btn-generate-phrase"
-                        class="border border-border px-2 py-1 hover:bg-fg hover:text-bg cursor-pointer text-xs"
-                        title="Generate a random recovery phrase"
+                        id="tab-mnemonic"
+                        class="px-2 py-1 cursor-pointer text-xs border-b-2 border-fg font-bold"
                     >
-                        [&#9856;]
+                        From Phrase
+                    </button>
+                    <button
+                        id="tab-privkey"
+                        class="px-2 py-1 cursor-pointer text-xs border-b-2 border-transparent text-muted hover:text-fg"
+                    >
+                        From Key
+                    </button>
+                    <button
+                        id="tab-xprv"
+                        class="px-2 py-1 cursor-pointer text-xs border-b-2 border-transparent text-muted hover:text-fg"
+                    >
+                        From xprv
                     </button>
                 </div>
-                <div class="mb-2">
-                    <textarea
-                        id="wallet-mnemonic"
-                        rows="3"
-                        class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg resize-y"
-                        placeholder="word word word ..."
-                    ></textarea>
+
+                <!-- Mnemonic form section -->
+                <div id="add-wallet-section-mnemonic">
+                    <p class="mb-2">
+                        Enter your 12 or 24 word recovery phrase below, or click
+                        the button to roll the die for a new one.
+                    </p>
+                    <div class="mb-1 flex justify-end">
+                        <button
+                            id="btn-generate-phrase"
+                            class="border border-border px-2 py-1 hover:bg-fg hover:text-bg cursor-pointer text-xs"
+                            title="Generate a random recovery phrase"
+                        >
+                            [&#9856;]
+                        </button>
+                    </div>
+                    <div class="mb-2">
+                        <textarea
+                            id="wallet-mnemonic"
+                            rows="3"
+                            class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg resize-y"
+                            placeholder="word word word ..."
+                        ></textarea>
+                    </div>
+                    <div
+                        id="add-wallet-phrase-warning"
+                        class="text-xs mb-2 border border-border border-dashed p-2 hidden"
+                    >
+                        Write these words down and keep them safe. Anyone with
+                        them can take your funds; if you lose them, your wallet
+                        is gone.
+                    </div>
                 </div>
-                <div
-                    id="add-wallet-phrase-warning"
-                    class="text-xs mb-2 border border-border border-dashed p-2 hidden"
-                >
-                    Write these words down and keep them safe. Anyone with them
-                    can take your funds; if you lose them, your wallet is gone.
+
+                <!-- Private key form section -->
+                <div id="add-wallet-section-privkey" class="hidden">
+                    <p class="mb-2">
+                        Paste your private key below. This wallet will have a
+                        single address.
+                    </p>
+                    <div class="mb-2">
+                        <input
+                            type="password"
+                            id="import-private-key"
+                            class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg"
+                            placeholder="0x..."
+                        />
+                    </div>
                 </div>
+
+                <!-- Extended key (xprv) form section -->
+                <div id="add-wallet-section-xprv" class="hidden">
+                    <p class="mb-2">
+                        Paste your extended private key (xprv) below. This will
+                        import the HD wallet and scan for used addresses.
+                    </p>
+                    <div class="mb-2">
+                        <input
+                            type="password"
+                            id="import-xprv-key"
+                            class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg"
+                            placeholder="xprv..."
+                        />
+                    </div>
+                </div>
+
+                <!-- Shared password fields -->
                 <div class="mb-2" id="add-wallet-password-section">
                     <label class="block mb-1">Choose a password</label>
-                    <p class="text-xs text-muted mb-1">
+                    <p
+                        class="text-xs text-muted mb-1"
+                        id="add-wallet-password-hint"
+                    >
                         This password encrypts your recovery phrase on this
                         device. You will need it to send funds.
                     </p>
@@ -107,64 +174,6 @@
                 <button
                     id="btn-add-wallet-confirm"
                     class="border border-border px-2 py-1 hover:bg-fg hover:text-bg cursor-pointer"
-                >
-                    Add
-                </button>
-                <div class="mt-3 text-xs text-muted">
-                    Have a private key instead?
-                    <button
-                        id="btn-add-wallet-import-key"
-                        class="underline cursor-pointer bg-transparent border-none text-fg text-xs font-mono p-0"
-                    >
-                        Import private key
-                    </button>
-                </div>
-            </div>
-
-            <!-- ============ IMPORT PRIVATE KEY ============ -->
-            <div id="view-import-key" class="view hidden">
-                <button
-                    id="btn-import-key-back"
-                    class="border border-border px-2 py-1 hover:bg-fg hover:text-bg cursor-pointer mb-2"
-                >
-                    &lt; Back
-                </button>
-                <h2 class="font-bold mb-2">Import Private Key</h2>
-                <p class="mb-2">
-                    Paste your private key below. This wallet will have a single
-                    address.
-                </p>
-                <div class="mb-2">
-                    <input
-                        type="password"
-                        id="import-private-key"
-                        class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg"
-                        placeholder="0x..."
-                    />
-                </div>
-                <div class="mb-2" id="import-key-password-section">
-                    <label class="block mb-1">Choose a password</label>
-                    <p class="text-xs text-muted mb-1">
-                        This password encrypts your private key on this device.
-                        You will need it to send funds.
-                    </p>
-                    <input
-                        type="password"
-                        id="import-key-password"
-                        class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg"
-                    />
-                </div>
-                <div class="mb-2" id="import-key-password-confirm-section">
-                    <label class="block mb-1">Confirm password</label>
-                    <input
-                        type="password"
-                        id="import-key-password-confirm"
-                        class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg"
-                    />
-                </div>
-                <button
-                    id="btn-import-key-confirm"
-                    class="border border-border px-2 py-1 hover:bg-fg hover:text-bg cursor-pointer"
                 >
                     Import
                 </button>
@@ -305,6 +314,26 @@
                     >
                         + Token
                     </button>
+                    <div class="relative">
+                        <button
+                            id="btn-more-menu"
+                            class="border border-border px-2 py-1 hover:bg-fg hover:text-bg cursor-pointer"
+                            aria-label="More actions"
+                        >
+                            &middot;&middot;&middot;
+                        </button>
+                        <div
+                            id="more-menu-dropdown"
+                            class="hidden absolute right-0 top-full mt-1 border border-border bg-bg z-50 whitespace-nowrap py-1"
+                        >
+                            <button
+                                id="btn-export-privkey"
+                                class="block w-full text-left px-4 py-1.5 text-xs font-light text-muted hover:bg-hover hover:text-fg cursor-pointer"
+                            >
+                                Export Private Key
+                            </button>
+                        </div>
+                    </div>
                 </div>
 
                 <!-- transactions -->
@@ -318,6 +347,60 @@
                 </div>
             </div>
 
+            <!-- ============ EXPORT PRIVATE KEY VIEW ============ -->
+            <div id="view-export-privkey" class="view hidden">
+                <button
+                    id="btn-export-privkey-back"
+                    class="border border-border px-2 py-1 hover:bg-fg hover:text-bg cursor-pointer mb-2"
+                >
+                    &lt; Back
+                </button>
+                <div
+                    id="export-privkey-jazzicon"
+                    class="flex justify-center mt-1 mb-3"
+                ></div>
+                <h2 class="font-bold mb-1">Export Private Key</h2>
+                <p class="text-xs mb-1" id="export-privkey-title"></p>
+                <p class="text-xs mb-3">
+                    <span id="export-privkey-dot"></span>
+                    <span
+                        id="export-privkey-address"
+                        class="cursor-pointer"
+                        title="Click to copy"
+                    ></span>
+                </p>
+                <p class="text-xs mb-3 text-muted">
+                    Warning: anyone with this private key can access and
+                    transfer all funds from this address. Never share it.
+                </p>
+                <div
+                    id="export-privkey-flash"
+                    class="text-xs mb-2 hidden"
+                ></div>
+                <div id="export-privkey-password-section" class="mb-2">
+                    <label class="block mb-1">Password</label>
+                    <input
+                        type="password"
+                        id="export-privkey-password"
+                        class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg"
+                        placeholder="Enter your password to continue"
+                    />
+                    <button
+                        id="btn-export-privkey-confirm"
+                        class="border border-border px-2 py-1 hover:bg-fg hover:text-bg cursor-pointer mt-2"
+                    >
+                        Reveal
+                    </button>
+                </div>
+                <div id="export-privkey-result" class="hidden">
+                    <div
+                        id="export-privkey-value"
+                        class="bg-danger-well rounded p-2 font-mono text-xs break-all cursor-pointer mb-1"
+                        title="Click to copy"
+                    ></div>
+                </div>
+            </div>
+
             <!-- ============ ADDRESS-TOKEN DETAIL VIEW ============ -->
             <div id="view-address-token" class="view hidden">
                 <button
@@ -422,6 +505,11 @@
                         class="border border-border p-1 w-full font-mono text-sm bg-bg text-fg"
                         placeholder="Address (0x...) or ENS name"
                     />
+                    <div
+                        id="send-to-error"
+                        class="text-xs"
+                        style="min-height: 1.25rem; color: #cc0000"
+                    ></div>
                 </div>
                 <div class="mb-2">
                     <div class="flex justify-between mb-1">
@@ -463,12 +551,12 @@
                 </div>
 
                 <!-- ERC-20 token contract (hidden for ETH) -->
-                <div
-                    id="confirm-token-section"
-                    class="bg-hover rounded-md mx-1 p-3 mb-3 text-xs hidden"
-                >
-                    <div class="font-bold mb-2">Token Contract</div>
-                    <div id="confirm-token-contract" class="break-all"></div>
+                <div id="confirm-token-section" class="mb-3 hidden">
+                    <div class="text-xs text-muted mb-1">Token contract</div>
+                    <div
+                        id="confirm-token-contract"
+                        class="text-xs break-all"
+                    ></div>
                 </div>
 
                 <div class="mb-3">

src/popup/index.js

@@ -10,7 +10,6 @@ const { $, showView } = require("./views/helpers");
 const home = require("./views/home");
 const welcome = require("./views/welcome");
 const addWallet = require("./views/addWallet");
-const importKey = require("./views/importKey");
 const addressDetail = require("./views/addressDetail");
 const addressToken = require("./views/addressToken");
 const send = require("./views/send");
@@ -54,7 +53,6 @@ const ctx = {
     renderWalletList,
     doRefreshAndRender,
     showAddWalletView: () => addWallet.show(),
-    showImportKeyView: () => importKey.show(),
     showAddressDetail: () => addressDetail.show(),
     showAddressToken: () => addressToken.show(),
     showAddTokenView: () => addToken.show(),
@@ -209,7 +207,6 @@ async function init() {
 
     welcome.init(ctx);
     addWallet.init(ctx);
-    importKey.init(ctx);
     home.init(ctx);
     addressDetail.init(ctx);
     addressToken.init(ctx);

src/popup/styles/main.css

@@ -11,6 +11,7 @@
     --color-border-light: #cccccc;
     --color-hover: #eeeeee;
     --color-well: #f5f5f5;
+    --color-danger-well: #fef2f2;
     --color-section: #dddddd;
 }
 

src/popup/views/addWallet.js

@@ -3,114 +3,275 @@ const {
     generateMnemonic,
     hdWalletFromMnemonic,
     isValidMnemonic,
+    addressFromPrivateKey,
+    hdWalletFromXprv,
+    isValidXprv,
 } = require("../../shared/wallet");
 const { encryptWithPassword } = require("../../shared/vault");
 const { state, saveState } = require("../../shared/state");
 const { scanForAddresses } = require("../../shared/balances");
 
+let currentMode = "mnemonic";
+
+const MODES = ["mnemonic", "privkey", "xprv"];
+
+const PASSWORD_HINTS = {
+    mnemonic:
+        "This password encrypts your recovery phrase on this device. You will need it to send funds.",
+    privkey:
+        "This password encrypts your private key on this device. You will need it to send funds.",
+    xprv: "This password encrypts your key on this device. You will need it to send funds.",
+};
+
+function switchMode(mode) {
+    currentMode = mode;
+    for (const m of MODES) {
+        $("add-wallet-section-" + m).classList.toggle("hidden", m !== mode);
+        const tab = $("tab-" + m);
+        tab.classList.toggle("border-fg", m === mode);
+        tab.classList.toggle("font-bold", m === mode);
+        tab.classList.toggle("border-transparent", m !== mode);
+        tab.classList.toggle("text-muted", m !== mode);
+    }
+    $("add-wallet-password-hint").textContent = PASSWORD_HINTS[mode];
+}
+
 function show() {
     $("wallet-mnemonic").value = "";
+    $("import-private-key").value = "";
+    $("import-xprv-key").value = "";
     $("add-wallet-password").value = "";
     $("add-wallet-password-confirm").value = "";
     $("add-wallet-phrase-warning").classList.add("hidden");
+    switchMode("mnemonic");
     showView("add-wallet");
 }
 
+function validatePassword() {
+    const pw = $("add-wallet-password").value;
+    const pw2 = $("add-wallet-password-confirm").value;
+    if (!pw) {
+        showFlash("Please choose a password.");
+        return null;
+    }
+    if (pw.length < 12) {
+        showFlash("Password must be at least 12 characters.");
+        return null;
+    }
+    if (pw !== pw2) {
+        showFlash("Passwords do not match.");
+        return null;
+    }
+    return pw;
+}
+
+async function importMnemonic(ctx) {
+    const mnemonic = $("wallet-mnemonic").value.trim();
+    if (!mnemonic) {
+        showFlash("Enter a recovery phrase or press the die to generate one.");
+        return;
+    }
+    const words = mnemonic.split(/\s+/);
+    if (words.length !== 12 && words.length !== 24) {
+        showFlash(
+            "Recovery phrase must be 12 or 24 words. You entered " +
+                words.length +
+                ".",
+        );
+        return;
+    }
+    if (!isValidMnemonic(mnemonic)) {
+        showFlash("Invalid recovery phrase. Check for typos.");
+        return;
+    }
+    const pw = validatePassword();
+    if (!pw) return;
+    const { xpub, firstAddress } = hdWalletFromMnemonic(mnemonic);
+    const duplicate = state.wallets.find(
+        (w) =>
+            w.type === "hd" &&
+            w.addresses[0] &&
+            w.addresses[0].address.toLowerCase() === firstAddress.toLowerCase(),
+    );
+    if (duplicate) {
+        showFlash(
+            "This recovery phrase is already added (" + duplicate.name + ").",
+        );
+        return;
+    }
+    const encrypted = await encryptWithPassword(mnemonic, pw);
+    const walletNum = state.wallets.length + 1;
+    const wallet = {
+        type: "hd",
+        name: "Wallet " + walletNum,
+        xpub: xpub,
+        encryptedSecret: encrypted,
+        nextIndex: 1,
+        addresses: [
+            { address: firstAddress, balance: "0.0000", tokenBalances: [] },
+        ],
+    };
+    state.wallets.push(wallet);
+    state.hasWallet = true;
+    await saveState();
+    ctx.renderWalletList();
+    showView("main");
+
+    // Scan for used HD addresses beyond index 0.
+    showFlash("Scanning for addresses...", 30000);
+    const scan = await scanForAddresses(xpub, state.rpcUrl);
+    if (scan.addresses.length > 1) {
+        wallet.addresses = scan.addresses.map((a) => ({
+            address: a.address,
+            balance: "0.0000",
+            tokenBalances: [],
+        }));
+        wallet.nextIndex = scan.nextIndex;
+        await saveState();
+        ctx.renderWalletList();
+        showFlash("Found " + scan.addresses.length + " addresses.");
+    } else {
+        showFlash("Ready.", 1000);
+    }
+
+    ctx.doRefreshAndRender();
+}
+
+async function importPrivateKey(ctx) {
+    const key = $("import-private-key").value.trim();
+    if (!key) {
+        showFlash("Please enter your private key.");
+        return;
+    }
+    let addr;
+    try {
+        addr = addressFromPrivateKey(key);
+    } catch (e) {
+        showFlash("Invalid private key.");
+        return;
+    }
+    const pw = validatePassword();
+    if (!pw) return;
+    const duplicate = state.wallets.find(
+        (w) =>
+            w.type === "key" &&
+            w.addresses[0] &&
+            w.addresses[0].address.toLowerCase() === addr.toLowerCase(),
+    );
+    if (duplicate) {
+        showFlash(
+            "This private key is already added (" + duplicate.name + ").",
+        );
+        return;
+    }
+    const encrypted = await encryptWithPassword(key, pw);
+    const walletNum = state.wallets.length + 1;
+    state.wallets.push({
+        type: "key",
+        name: "Wallet " + walletNum,
+        encryptedSecret: encrypted,
+        addresses: [{ address: addr, balance: "0.0000", tokenBalances: [] }],
+    });
+    state.hasWallet = true;
+    await saveState();
+    ctx.renderWalletList();
+    showView("main");
+
+    ctx.doRefreshAndRender();
+}
+
+async function importXprvKey(ctx) {
+    const xprv = $("import-xprv-key").value.trim();
+    if (!xprv) {
+        showFlash("Please enter your extended private key.");
+        return;
+    }
+    if (!isValidXprv(xprv)) {
+        showFlash("Invalid extended private key.");
+        return;
+    }
+    let result;
+    try {
+        result = hdWalletFromXprv(xprv);
+    } catch (e) {
+        showFlash("Invalid extended private key.");
+        return;
+    }
+    const { xpub, firstAddress } = result;
+    const duplicate = state.wallets.find(
+        (w) =>
+            (w.type === "hd" || w.type === "xprv") &&
+            w.addresses[0] &&
+            w.addresses[0].address.toLowerCase() === firstAddress.toLowerCase(),
+    );
+    if (duplicate) {
+        showFlash("This key is already added (" + duplicate.name + ").");
+        return;
+    }
+    const pw = validatePassword();
+    if (!pw) return;
+    const encrypted = await encryptWithPassword(xprv, pw);
+    const walletNum = state.wallets.length + 1;
+    const wallet = {
+        type: "xprv",
+        name: "Wallet " + walletNum,
+        xpub: xpub,
+        encryptedSecret: encrypted,
+        nextIndex: 1,
+        addresses: [
+            { address: firstAddress, balance: "0.0000", tokenBalances: [] },
+        ],
+    };
+    state.wallets.push(wallet);
+    state.hasWallet = true;
+    await saveState();
+    ctx.renderWalletList();
+    showView("main");
+
+    // Scan for used HD addresses beyond index 0.
+    showFlash("Scanning for addresses...", 30000);
+    const scan = await scanForAddresses(xpub, state.rpcUrl);
+    if (scan.addresses.length > 1) {
+        wallet.addresses = scan.addresses.map((a) => ({
+            address: a.address,
+            balance: "0.0000",
+            tokenBalances: [],
+        }));
+        wallet.nextIndex = scan.nextIndex;
+        await saveState();
+        ctx.renderWalletList();
+        showFlash("Found " + scan.addresses.length + " addresses.");
+    } else {
+        showFlash("Ready.", 1000);
+    }
+
+    ctx.doRefreshAndRender();
+}
+
 function init(ctx) {
+    // Tab click handlers
+    $("tab-mnemonic").addEventListener("click", () => switchMode("mnemonic"));
+    $("tab-privkey").addEventListener("click", () => switchMode("privkey"));
+    $("tab-xprv").addEventListener("click", () => switchMode("xprv"));
+
+    // Generate mnemonic
     $("btn-generate-phrase").addEventListener("click", () => {
         $("wallet-mnemonic").value = generateMnemonic();
         $("add-wallet-phrase-warning").classList.remove("hidden");
     });
 
+    // Import / confirm
     $("btn-add-wallet-confirm").addEventListener("click", async () => {
-        const mnemonic = $("wallet-mnemonic").value.trim();
-        if (!mnemonic) {
-            showFlash(
-                "Enter a recovery phrase or press the die to generate one.",
-            );
-            return;
+        if (currentMode === "mnemonic") {
+            await importMnemonic(ctx);
+        } else if (currentMode === "privkey") {
+            await importPrivateKey(ctx);
+        } else if (currentMode === "xprv") {
+            await importXprvKey(ctx);
         }
-        const words = mnemonic.split(/\s+/);
-        if (words.length !== 12 && words.length !== 24) {
-            showFlash(
-                "Recovery phrase must be 12 or 24 words. You entered " +
-                    words.length +
-                    ".",
-            );
-            return;
-        }
-        if (!isValidMnemonic(mnemonic)) {
-            showFlash("Invalid recovery phrase. Check for typos.");
-            return;
-        }
-        const pw = $("add-wallet-password").value;
-        const pw2 = $("add-wallet-password-confirm").value;
-        if (!pw) {
-            showFlash("Please choose a password.");
-            return;
-        }
-        if (pw.length < 12) {
-            showFlash("Password must be at least 12 characters.");
-            return;
-        }
-        if (pw !== pw2) {
-            showFlash("Passwords do not match.");
-            return;
-        }
-        const { xpub, firstAddress } = hdWalletFromMnemonic(mnemonic);
-        const duplicate = state.wallets.find(
-            (w) =>
-                w.type === "hd" &&
-                w.addresses[0] &&
-                w.addresses[0].address.toLowerCase() ===
-                    firstAddress.toLowerCase(),
-        );
-        if (duplicate) {
-            showFlash(
-                "This recovery phrase is already added (" +
-                    duplicate.name +
-                    ").",
-            );
-            return;
-        }
-        const encrypted = await encryptWithPassword(mnemonic, pw);
-        const walletNum = state.wallets.length + 1;
-        const wallet = {
-            type: "hd",
-            name: "Wallet " + walletNum,
-            xpub: xpub,
-            encryptedSecret: encrypted,
-            nextIndex: 1,
-            addresses: [
-                { address: firstAddress, balance: "0.0000", tokenBalances: [] },
-            ],
-        };
-        state.wallets.push(wallet);
-        state.hasWallet = true;
-        await saveState();
-        ctx.renderWalletList();
-        showView("main");
-
-        // Scan for used HD addresses beyond index 0.
-        showFlash("Scanning for addresses...", 30000);
-        const scan = await scanForAddresses(xpub, state.rpcUrl);
-        if (scan.addresses.length > 1) {
-            wallet.addresses = scan.addresses.map((a) => ({
-                address: a.address,
-                balance: "0.0000",
-                tokenBalances: [],
-            }));
-            wallet.nextIndex = scan.nextIndex;
-            await saveState();
-            ctx.renderWalletList();
-            showFlash("Found " + scan.addresses.length + " addresses.");
-        } else {
-            showFlash("Ready.", 1000);
-        }
-
-        ctx.doRefreshAndRender();
     });
 
+    // Back button
     $("btn-add-wallet-back").addEventListener("click", () => {
         if (!state.hasWallet) {
             showView("welcome");
@@ -119,11 +280,6 @@ function init(ctx) {
             showView("main");
         }
     });
-
-    $("btn-add-wallet-import-key").addEventListener(
-        "click",
-        ctx.showImportKeyView,
-    );
 }
 
 module.exports = { init, show };

src/popup/views/addressDetail.js

@@ -15,9 +15,15 @@ const {
     filterTransactions,
 } = require("../../shared/transactions");
 const { resolveEnsNames } = require("../../shared/ens");
-const { updateSendBalance, renderSendTokenSelect } = require("./send");
+const {
+    updateSendBalance,
+    renderSendTokenSelect,
+    resetSendValidation,
+} = require("./send");
 const { log } = require("../../shared/log");
 const makeBlockie = require("ethereum-blockies-base64");
+const { decryptWithPassword } = require("../../shared/vault");
+const { getSignerForAddress } = require("../../shared/wallet");
 
 let ctx;
 
@@ -257,6 +263,7 @@ function init(_ctx) {
         $("send-token").classList.remove("hidden");
         $("send-token-static").classList.add("hidden");
         updateSendBalance();
+        resetSendValidation();
         showView("send");
     });
 
@@ -265,6 +272,102 @@ function init(_ctx) {
     });
 
     $("btn-add-token").addEventListener("click", ctx.showAddTokenView);
+
+    // More menu dropdown
+    const moreBtn = $("btn-more-menu");
+    const moreDropdown = $("more-menu-dropdown");
+    moreBtn.addEventListener("click", (e) => {
+        e.stopPropagation();
+        const isOpen = !moreDropdown.classList.toggle("hidden");
+        moreBtn.classList.toggle("bg-fg", isOpen);
+        moreBtn.classList.toggle("text-bg", isOpen);
+    });
+    document.addEventListener("click", () => {
+        moreDropdown.classList.add("hidden");
+        moreBtn.classList.remove("bg-fg", "text-bg");
+    });
+    moreDropdown.addEventListener("click", (e) => {
+        e.stopPropagation();
+    });
+
+    $("btn-export-privkey").addEventListener("click", () => {
+        moreDropdown.classList.add("hidden");
+        moreBtn.classList.remove("bg-fg", "text-bg");
+        const wallet = state.wallets[state.selectedWallet];
+        const addr = wallet.addresses[state.selectedAddress];
+        const blockieEl = $("export-privkey-jazzicon");
+        blockieEl.innerHTML = "";
+        const bImg = document.createElement("img");
+        bImg.src = makeBlockie(addr.address);
+        bImg.width = 48;
+        bImg.height = 48;
+        bImg.style.imageRendering = "pixelated";
+        bImg.style.borderRadius = "50%";
+        blockieEl.appendChild(bImg);
+        $("export-privkey-title").textContent =
+            wallet.name + " \u2014 Address " + (state.selectedAddress + 1);
+        $("export-privkey-dot").innerHTML = addressDotHtml(addr.address);
+        $("export-privkey-address").textContent = addr.address;
+        $("export-privkey-address").dataset.full = addr.address;
+        $("export-privkey-password").value = "";
+        $("export-privkey-flash").classList.add("hidden");
+        $("export-privkey-flash").textContent = "";
+        $("export-privkey-password-section").classList.remove("hidden");
+        $("export-privkey-result").classList.add("hidden");
+        $("export-privkey-value").textContent = "";
+        showView("export-privkey");
+    });
+
+    $("btn-export-privkey-confirm").addEventListener("click", async () => {
+        const password = $("export-privkey-password").value;
+        if (!password) {
+            $("export-privkey-flash").textContent = "Password is required.";
+            $("export-privkey-flash").classList.remove("hidden");
+            return;
+        }
+        const wallet = state.wallets[state.selectedWallet];
+        try {
+            const secret = await decryptWithPassword(
+                wallet.encryptedSecret,
+                password,
+            );
+            const signer = getSignerForAddress(
+                wallet,
+                state.selectedAddress,
+                secret,
+            );
+            const privateKey = signer.privateKey;
+            $("export-privkey-password-section").classList.add("hidden");
+            $("export-privkey-value").textContent = privateKey;
+            $("export-privkey-result").classList.remove("hidden");
+            $("export-privkey-flash").classList.add("hidden");
+        } catch {
+            $("export-privkey-flash").textContent = "Wrong password.";
+            $("export-privkey-flash").classList.remove("hidden");
+        }
+    });
+
+    $("export-privkey-value").addEventListener("click", () => {
+        const key = $("export-privkey-value").textContent;
+        if (key) {
+            navigator.clipboard.writeText(key);
+            showFlash("Copied!");
+        }
+    });
+
+    $("export-privkey-address").addEventListener("click", () => {
+        const full = $("export-privkey-address").dataset.full;
+        if (full) {
+            navigator.clipboard.writeText(full);
+            showFlash("Copied!");
+        }
+    });
+
+    $("btn-export-privkey-back").addEventListener("click", () => {
+        $("export-privkey-value").textContent = "";
+        $("export-privkey-password").value = "";
+        show();
+    });
 }
 
 module.exports = { init, show };

src/popup/views/addressToken.js

@@ -23,7 +23,11 @@ const {
     filterTransactions,
 } = require("../../shared/transactions");
 const { resolveEnsNames } = require("../../shared/ens");
-const { updateSendBalance, renderSendTokenSelect } = require("./send");
+const {
+    updateSendBalance,
+    renderSendTokenSelect,
+    resetSendValidation,
+} = require("./send");
 const { log } = require("../../shared/log");
 const makeBlockie = require("ethereum-blockies-base64");
 
@@ -372,6 +376,7 @@ function init(_ctx) {
             });
         }
         updateSendBalance();
+        resetSendValidation();
         showView("send");
     });
 

src/popup/views/confirmTx.js

@@ -14,6 +14,7 @@ const {
     showError,
     hideError,
     showView,
+    showFlash,
     addressTitle,
     addressDotHtml,
     escapeHtml,
@@ -98,20 +99,19 @@ function show(txInfo) {
         const dot = addressDotHtml(txInfo.token);
         const link = etherscanTokenLink(txInfo.token);
         $("confirm-token-contract").innerHTML =
-            `<div class="flex items-center">` +
-            dot +
-            `<span class="break-all underline decoration-dashed cursor-pointer" id="confirm-token-contract-copy" data-copy="${escapeHtml(txInfo.token)}">${escapeHtml(txInfo.token)}</span>` +
+            `<div class="flex items-center">${dot}` +
+            `<span class="break-all underline decoration-dashed cursor-pointer" data-copy="${escapeHtml(txInfo.token)}">${escapeHtml(txInfo.token)}</span>` +
             `<a href="${link}" target="_blank" rel="noopener" class="inline-flex items-center">${EXT_ICON}</a>` +
             `</div>`;
-        if (txInfo.tokenName) {
-            $("confirm-token-contract").innerHTML +=
-                `<div class="mt-1"><span class="text-muted">Name:</span> ${escapeHtml(txInfo.tokenName)}</div>`;
-        }
-        if (txInfo.tokenSymbol) {
-            $("confirm-token-contract").innerHTML +=
-                `<div class="mt-1"><span class="text-muted">Symbol:</span> ${escapeHtml(txInfo.tokenSymbol)}</div>`;
-        }
         tokenSection.classList.remove("hidden");
+        // Attach click-to-copy on the contract address
+        const copyEl = tokenSection.querySelector("[data-copy]");
+        if (copyEl) {
+            copyEl.onclick = () => {
+                navigator.clipboard.writeText(copyEl.dataset.copy);
+                showFlash("Copied!");
+            };
+        }
     } else {
         tokenSection.classList.add("hidden");
     }
@@ -285,13 +285,6 @@ function hidePasswordModal() {
 }
 
 function init(ctx) {
-    $("confirm-token-section").addEventListener("click", (e) => {
-        const copyEl = e.target.closest("[data-copy]");
-        if (copyEl) {
-            navigator.clipboard.writeText(copyEl.dataset.copy);
-        }
-    });
-
     $("btn-confirm-send").addEventListener("click", () => {
         showPasswordModal();
     });

src/popup/views/helpers.js

@@ -13,7 +13,6 @@ const { state, saveState } = require("../../shared/state");
 const VIEWS = [
     "welcome",
     "add-wallet",
-    "import-key",
     "main",
     "address",
     "address-token",
@@ -31,6 +30,7 @@ const VIEWS = [
     "approve-site",
     "approve-tx",
     "approve-sign",
+    "export-privkey",
 ];
 
 function $(id) {

src/popup/views/home.js

@@ -11,7 +11,11 @@ const {
     truncateMiddle,
 } = require("./helpers");
 const { state, saveState, currentAddress } = require("../../shared/state");
-const { updateSendBalance, renderSendTokenSelect } = require("./send");
+const {
+    updateSendBalance,
+    renderSendTokenSelect,
+    resetSendValidation,
+} = require("./send");
 const { deriveAddressFromXpub } = require("../../shared/wallet");
 const {
     formatUsd,
@@ -235,7 +239,7 @@ function render(ctx) {
         html += `<div>`;
         html += `<div class="flex justify-between items-center bg-section py-1 px-2" style="margin:0 -0.5rem">`;
         html += `<span class="font-bold cursor-pointer wallet-name underline decoration-dashed" data-wallet="${wi}">${wallet.name}</span>`;
-        if (wallet.type === "hd") {
+        if (wallet.type === "hd" || wallet.type === "xprv") {
             html += `<button class="btn-add-address border border-border px-1 hover:bg-fg hover:text-bg cursor-pointer text-xs" data-wallet="${wi}" title="Add another address to this wallet">+</button>`;
         }
         html += `</div>`;
@@ -388,6 +392,7 @@ function init(ctx) {
         $("send-token-static").classList.add("hidden");
         renderSendTokenSelect(addr);
         updateSendBalance();
+        resetSendValidation();
         showView("send");
     });
 

src/popup/views/importKey.js

@@ -1,69 +0,0 @@
-const { $, showView, showFlash } = require("./helpers");
-const { addressFromPrivateKey } = require("../../shared/wallet");
-const { encryptWithPassword } = require("../../shared/vault");
-const { state, saveState } = require("../../shared/state");
-
-function show() {
-    $("import-private-key").value = "";
-    $("import-key-password").value = "";
-    $("import-key-password-confirm").value = "";
-    showView("import-key");
-}
-
-function init(ctx) {
-    $("btn-import-key-confirm").addEventListener("click", async () => {
-        const key = $("import-private-key").value.trim();
-        if (!key) {
-            showFlash("Please enter your private key.");
-            return;
-        }
-        let addr;
-        try {
-            addr = addressFromPrivateKey(key);
-        } catch (e) {
-            showFlash("Invalid private key.");
-            return;
-        }
-        const pw = $("import-key-password").value;
-        const pw2 = $("import-key-password-confirm").value;
-        if (!pw) {
-            showFlash("Please choose a password.");
-            return;
-        }
-        if (pw.length < 12) {
-            showFlash("Password must be at least 12 characters.");
-            return;
-        }
-        if (pw !== pw2) {
-            showFlash("Passwords do not match.");
-            return;
-        }
-        const encrypted = await encryptWithPassword(key, pw);
-        const walletNum = state.wallets.length + 1;
-        state.wallets.push({
-            type: "key",
-            name: "Wallet " + walletNum,
-            encryptedSecret: encrypted,
-            addresses: [
-                { address: addr, balance: "0.0000", tokenBalances: [] },
-            ],
-        });
-        state.hasWallet = true;
-        await saveState();
-        ctx.renderWalletList();
-        showView("main");
-
-        ctx.doRefreshAndRender();
-    });
-
-    $("btn-import-key-back").addEventListener("click", () => {
-        if (!state.hasWallet) {
-            showView("welcome");
-        } else {
-            ctx.renderWalletList();
-            showView("main");
-        }
-    });
-}
-
-module.exports = { init, show };

src/popup/views/send.js

@@ -10,11 +10,108 @@ const {
 const { state, currentAddress } = require("../../shared/state");
 let ctx;
 const { getProvider } = require("../../shared/balances");
-const {
-    KNOWN_SYMBOLS,
-    TOKEN_BY_ADDRESS,
-    resolveSymbol,
-} = require("../../shared/tokenList");
+const { KNOWN_SYMBOLS, resolveSymbol } = require("../../shared/tokenList");
+const { getAddress } = require("ethers");
+
+const ZERO_ADDRESS = "0x0000000000000000000000000000000000000000";
+
+/**
+ * Validate a destination address string.
+ * Returns { valid: true } or { valid: false, error: "..." }.
+ */
+function validateToAddress(value) {
+    const v = value.trim();
+    if (!v) return { valid: false, error: "" };
+
+    // ENS names: contains a dot and doesn't start with 0x
+    if (v.includes(".") && !v.startsWith("0x")) {
+        // Basic ENS format check: at least one label before and after dot
+        if (/^[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/.test(v)) {
+            return { valid: true };
+        }
+        return {
+            valid: false,
+            error: "Please enter a valid ENS name.",
+        };
+    }
+
+    // Must look like an Ethereum address
+    if (!/^0x[0-9a-fA-F]{40}$/.test(v)) {
+        return {
+            valid: false,
+            error: "Please enter a valid Ethereum address.",
+        };
+    }
+
+    // Reject zero address
+    if (v.toLowerCase() === ZERO_ADDRESS) {
+        return {
+            valid: false,
+            error: "Sending to the zero address is not allowed.",
+        };
+    }
+
+    // EIP-55 checksum validation: all-lowercase is ok, otherwise must match checksum
+    if (v !== v.toLowerCase()) {
+        try {
+            const checksummed = getAddress(v);
+            if (checksummed !== v) {
+                return {
+                    valid: false,
+                    error: "Address checksum is invalid. Please double-check the address.",
+                };
+            }
+        } catch {
+            return {
+                valid: false,
+                error: "Address checksum is invalid. Please double-check the address.",
+            };
+        }
+    }
+
+    // Warn if sending to own address
+    const addr = currentAddress();
+    if (addr && v.toLowerCase() === addr.address.toLowerCase()) {
+        // Allow but will warn — we return valid with a warning
+        return {
+            valid: true,
+            warning: "This is your own address. Are you sure?",
+        };
+    }
+
+    return { valid: true };
+}
+
+function updateToValidation() {
+    const input = $("send-to");
+    const errorEl = $("send-to-error");
+    const btn = $("btn-send-review");
+    const value = input.value.trim();
+
+    if (!value) {
+        errorEl.textContent = "";
+        btn.disabled = true;
+        btn.classList.add("opacity-50");
+        return;
+    }
+
+    const result = validateToAddress(value);
+    if (!result.valid) {
+        errorEl.textContent = result.error;
+        errorEl.style.color = "#cc0000";
+        btn.disabled = true;
+        btn.classList.add("opacity-50");
+    } else if (result.warning) {
+        errorEl.textContent = result.warning;
+        errorEl.style.color = "#b8860b";
+        btn.disabled = false;
+        btn.classList.remove("opacity-50");
+    } else {
+        errorEl.textContent = "";
+        btn.disabled = false;
+        btn.classList.remove("opacity-50");
+    }
+}
 
 const EXT_ICON =
     `<span style="display:inline-block;width:10px;height:10px;margin-left:4px;vertical-align:middle">` +
@@ -92,6 +189,13 @@ function init(_ctx) {
     ctx = _ctx;
     $("send-token").addEventListener("change", updateSendBalance);
 
+    // Initial state: disable review button until address is entered
+    $("btn-send-review").disabled = true;
+    $("btn-send-review").classList.add("opacity-50");
+
+    // Validate address on input
+    $("send-to").addEventListener("input", updateToValidation);
+
     $("btn-send-review").addEventListener("click", async () => {
         const to = $("send-to").value.trim();
         const amount = $("send-amount").value.trim();
@@ -99,6 +203,15 @@ function init(_ctx) {
             showFlash("Please enter a recipient address.");
             return;
         }
+
+        // Re-validate before proceeding
+        const validation = validateToAddress(to);
+        if (!validation.valid) {
+            showFlash(
+                validation.error || "Please enter a valid Ethereum address.",
+            );
+            return;
+        }
         if (!amount || isNaN(parseFloat(amount)) || parseFloat(amount) <= 0) {
             showFlash("Please enter a valid amount.");
             return;
@@ -128,7 +241,6 @@ function init(_ctx) {
 
         let tokenSymbol = null;
         let tokenBalance = null;
-        let tokenName = null;
         if (token !== "ETH") {
             const tb = (addr.tokenBalances || []).find(
                 (t) => t.address.toLowerCase() === token.toLowerCase(),
@@ -139,17 +251,6 @@ function init(_ctx) {
                 state.trackedTokens,
             );
             tokenBalance = tb ? tb.balance || "0" : "0";
-            // Resolve token name from balances, tracked tokens, or known list
-            const lower = token.toLowerCase();
-            tokenName =
-                (tb && tb.name) ||
-                (
-                    (state.trackedTokens || []).find(
-                        (t) => t.address.toLowerCase() === lower,
-                    ) || {}
-                ).name ||
-                (TOKEN_BY_ADDRESS.get(lower) || {}).name ||
-                null;
         }
 
         ctx.showConfirmTx({
@@ -161,7 +262,6 @@ function init(_ctx) {
             balance: addr.balance,
             tokenSymbol: tokenSymbol,
             tokenBalance: tokenBalance,
-            tokenName: tokenName,
         });
     });
 
@@ -176,4 +276,19 @@ function init(_ctx) {
     });
 }
 
-module.exports = { init, updateSendBalance, renderSendTokenSelect };
+function resetSendValidation() {
+    const errorEl = $("send-to-error");
+    const btn = $("btn-send-review");
+    if (errorEl) errorEl.textContent = "";
+    if (btn) {
+        btn.disabled = true;
+        btn.classList.add("opacity-50");
+    }
+}
+
+module.exports = {
+    init,
+    updateSendBalance,
+    renderSendTokenSelect,
+    resetSendValidation,
+};

src/shared/transactions.js

@@ -153,9 +153,11 @@ async function fetchRecentTransactions(address, blockscoutUrl, count = 25) {
 
     // When a token transfer shares a hash with a normal tx, the normal tx
     // is the contract call (0 ETH) and the token transfer has the real
-    // amount and symbol. Replace the normal tx with the token transfer,
-    // but preserve contract call metadata (direction, label, method) so
-    // swaps and other contract interactions display correctly.
+    // amount and symbol.  A single transaction (e.g. a swap) can produce
+    // multiple token transfers (one per token involved), so we key token
+    // transfers by hash + contract address to keep all of them.  We also
+    // preserve contract-call metadata (direction, label, method) from the
+    // matching normal tx so swaps display correctly.
     for (const tt of ttJson.items || []) {
         const parsed = parseTokenTransfer(tt, addrLower);
         const existing = txsByHash.get(parsed.hash);
@@ -164,8 +166,13 @@ async function fetchRecentTransactions(address, blockscoutUrl, count = 25) {
             parsed.directionLabel = existing.directionLabel;
             parsed.isContractCall = true;
             parsed.method = existing.method;
+            // Remove the bare-hash normal tx so it doesn't appear as a
+            // duplicate with empty value; token transfers replace it.
+            txsByHash.delete(parsed.hash);
         }
-        txsByHash.set(parsed.hash, parsed);
+        // Use composite key so multiple token transfers per tx are kept.
+        const ttKey = parsed.hash + ":" + (parsed.contractAddress || "");
+        txsByHash.set(ttKey, parsed);
     }
 
     const txs = [...txsByHash.values()];

src/shared/wallet.js

@@ -24,6 +24,26 @@ function hdWalletFromMnemonic(mnemonic) {
     return { xpub, firstAddress };
 }
 
+function hdWalletFromXprv(xprv) {
+    const root = HDNodeWallet.fromExtendedKey(xprv);
+    if (!root.privateKey) {
+        throw new Error("Not an extended private key (xprv).");
+    }
+    const node = root.derivePath("44'/60'/0'/0");
+    const xpub = node.neuter().extendedKey;
+    const firstAddress = node.deriveChild(0).address;
+    return { xpub, firstAddress };
+}
+
+function isValidXprv(key) {
+    try {
+        const node = HDNodeWallet.fromExtendedKey(key);
+        return !!node.privateKey;
+    } catch {
+        return false;
+    }
+}
+
 function addressFromPrivateKey(key) {
     const w = new Wallet(key);
     return w.address;
@@ -38,6 +58,11 @@ function getSignerForAddress(walletData, addrIndex, decryptedSecret) {
         );
         return node.deriveChild(addrIndex);
     }
+    if (walletData.type === "xprv") {
+        const root = HDNodeWallet.fromExtendedKey(decryptedSecret);
+        const node = root.derivePath("44'/60'/0'/0");
+        return node.deriveChild(addrIndex);
+    }
     return new Wallet(decryptedSecret);
 }
 
@@ -49,6 +74,8 @@ module.exports = {
     generateMnemonic,
     deriveAddressFromXpub,
     hdWalletFromMnemonic,
+    hdWalletFromXprv,
+    isValidXprv,
     addressFromPrivateKey,
     getSignerForAddress,
     isValidMnemonic,