diff --git a/src/shared/chainSwitch.js b/src/shared/chainSwitch.js
index e58337e..9e4950f 100644
--- a/src/shared/chainSwitch.js
+++ b/src/shared/chainSwitch.js
@@ -61,20 +61,31 @@ function clearPopupCaches() {
 // (https://git.eeqj.de/sneak/AutistMask/issues/653,
 // https://git.eeqj.de/sneak/AutistMask/issues/692).
 //
+// When the stored record is on another network, a switch saved elsewhere has
+// not reached this page yet. This page first takes that switch with
+// takeStoredNetwork() (state.js), as followStoredSettings() does. The switch to
+// `newNetworkId` is then made from the stored record's network. So every
+// network's list of tracked tokens in the stored record is kept
+// (https://git.eeqj.de/sneak/AutistMask/issues/701). When the stored record is
+// already on `newNetworkId`, the switch made from there only resets the
+// balances and caches.
+//
 // Before the switch, `state` takes the tracked tokens that another page stored
 // since this page's last save (takeStoredTrackedTokens() in state.js). The
 // switch then puts them away under the previous network, the network they were
-// added on. When the stored record is on another network, a switch saved
-// elsewhere has not reached this page yet. The stored record's tokens are then
-// that network's, and none are taken.
+// added on.
 async function onChainSwitch(newNetworkId) {
-    const { state, saveState, takeStoredTrackedTokens } = require("./state");
+    const {
+        state,
+        saveState,
+        takeStoredNetwork,
+        takeStoredTrackedTokens,
+    } = require("./state");
     let net = null;
     await saveState((stored) => {
         if (state.networkId === newNetworkId) return false;
-        if (stored.networkId === state.networkId) {
-            takeStoredTrackedTokens(stored);
-        }
+        if (stored.networkId !== state.networkId) takeStoredNetwork(stored);
+        takeStoredTrackedTokens(stored);
         net = applyChainSwitchFields(state, newNetworkId);
         stored.lastBalanceRefresh = 0;
         stored.fraudContracts = [];
diff --git a/src/shared/state.js b/src/shared/state.js
index 7ceba28..b2459fc 100644
--- a/src/shared/state.js
+++ b/src/shared/state.js
@@ -527,6 +527,14 @@ async function saveStateOnce(beforeWrite) {
             merged[key] = current[key];
         }
     }
+    // When the merged record names a network other than this page's, this page
+    // has not yet taken a switch saved elsewhere. This page's `trackedTokens`
+    // is then the list of the network that this page still has. So the merged
+    // record keeps the stored list
+    // (https://git.eeqj.de/sneak/AutistMask/issues/701).
+    if (merged.networkId !== current.networkId) {
+        merged.trackedTokens = fresh.trackedTokens;
+    }
     merged.hasWallet = Boolean(merged.wallets && merged.wallets.length > 0);
     // Stamped on every write, never merged or diffed: the record that goes to
     // storage is in THIS build's shape whatever shape it was read in, which is
@@ -608,11 +616,12 @@ function saveState(beforeWrite) {
 }
 
 // Give this page the network switch held by `stored`, a record a save of this
-// page has just read (followStoredSettings() in src/popup/index.js calls this
-// from `beforeWrite`), in `state` and in `baseline` alike, as loadState() does
-// with a whole record. The switch is then not this page's own change, even when
-// that save fails to write: a later switch back to the previous network still
-// differs from `baseline`, and is stored.
+// page has just read (followStoredSettings() in src/popup/index.js and
+// onChainSwitch() in src/shared/chainSwitch.js call this from `beforeWrite`),
+// in `state` and in `baseline` alike, as loadState() does with a whole
+// record. The switch is then not this page's own change, even when that save
+// fails to write: a later switch back to the previous network still differs
+// from `baseline`, and is stored.
 function takeStoredNetwork(stored) {
     copyChainSwitchFields(rawState, stored);
     copyChainSwitchFields(baseline, structuredClone(stored));
diff --git a/tests/trackedTokensPerNetwork.test.js b/tests/trackedTokensPerNetwork.test.js
index ff0b113..88350be 100644
--- a/tests/trackedTokensPerNetwork.test.js
+++ b/tests/trackedTokensPerNetwork.test.js
@@ -257,6 +257,7 @@ test("a token tracked on Sepolia when another page switched there is not tracked
         ...boot.storage.read("autistmask"),
         networkId: "sepolia",
         trackedTokens: [SEPOLIA_TOKEN],
+        networkTrackedTokens: { mainnet: [] },
     });
 
     await chooseNetwork(boot, "sepolia");
@@ -267,6 +268,62 @@ test("a token tracked on Sepolia when another page switched there is not tracked
     expect(stored.networkTrackedTokens.mainnet).toEqual([]);
 });
 
+// Another popup page saves a switch to Sepolia, where TST is tracked. Before
+// taking that switch, this page adds a token on Ethereum Mainnet. The add's
+// save does not write this page's Ethereum Mainnet list as Sepolia's list.
+test("a token added before this page takes another page's switch leaves Sepolia's tokens tracked", async () => {
+    const boot = await bootOnAddToken("mainnet", {
+        trackedTokens: [MAINNET_TOKEN],
+        networkTrackedTokens: { sepolia: [SEPOLIA_TOKEN] },
+    });
+    expect(boot.pageErrors).toEqual([]);
+    boot.storage.write("autistmask", {
+        ...boot.storage.read("autistmask"),
+        networkId: "sepolia",
+        trackedTokens: [SEPOLIA_TOKEN],
+        networkTrackedTokens: {
+            mainnet: [MAINNET_TOKEN],
+            sepolia: [SEPOLIA_TOKEN],
+        },
+    });
+    const { lookupTokenInfo } = require("../src/shared/balances");
+    lookupTokenInfo.mockResolvedValueOnce({
+        symbol: "NEW",
+        decimals: 18,
+        name: "New Token",
+    });
+
+    boot.node("settings-addtoken-address").value = NEW_TOKEN_ADDRESS;
+    await boot.click("btn-settings-addtoken-manual");
+
+    const stored = boot.storage.read("autistmask");
+    expect(stored.networkId).toBe("sepolia");
+    expect(stored.trackedTokens).toEqual([SEPOLIA_TOKEN]);
+    expect(stored.networkTrackedTokens.mainnet).toEqual([MAINNET_TOKEN]);
+});
+
+// Another popup page tracks DAI on Ethereum Mainnet and then saves a switch to
+// Sepolia. That switch puts DAI away under Ethereum Mainnet. This page has not
+// taken the switch yet. A switch to Sepolia in this page's Settings keeps DAI
+// on Ethereum Mainnet's list.
+test("a token another page tracked before its own switch stays tracked on Ethereum Mainnet", async () => {
+    const boot = await bootPopup(unversionedValidProfile());
+    expect(boot.pageErrors).toEqual([]);
+    await boot.click("btn-settings");
+    boot.storage.write("autistmask", {
+        ...boot.storage.read("autistmask"),
+        networkId: "sepolia",
+        trackedTokens: [],
+        networkTrackedTokens: { mainnet: [MAINNET_TOKEN] },
+    });
+
+    await chooseNetwork(boot, "sepolia");
+
+    const stored = boot.storage.read("autistmask");
+    expect(stored.networkId).toBe("sepolia");
+    expect(stored.networkTrackedTokens.mainnet).toEqual([MAINNET_TOKEN]);
+});
+
 // Another popup page records a fraud contract on Ethereum Mainnet after this
 // page's last save. The switch to Sepolia drops that fraud contract, as the
 // switch drops this page's own.