diff --git a/apps/browser/src/autofill/services/autofill.service.spec.ts b/apps/browser/src/autofill/services/autofill.service.spec.ts
index 2427c754aeb..dc9f3fcdbd4 100644
--- a/apps/browser/src/autofill/services/autofill.service.spec.ts
+++ b/apps/browser/src/autofill/services/autofill.service.spec.ts
@@ -209,6 +209,9 @@ describe("AutofillService", () => {
       tab2 = createChromeTabMock({ id: 2, url: "http://some-url.com" });
       tab3 = createChromeTabMock({ id: 3, url: "chrome-extension://some-extension-route" });
       jest.spyOn(BrowserApi, "tabsQuery").mockResolvedValueOnce([tab1, tab2]);
+      jest
+        .spyOn(BrowserApi, "getAllFrameDetails")
+        .mockResolvedValue([mock<chrome.webNavigation.GetAllFrameResultDetails>({ frameId: 0 })]);
       jest
         .spyOn(autofillService, "getOverlayVisibility")
         .mockResolvedValue(AutofillOverlayVisibility.OnFieldFocus);
@@ -219,6 +222,7 @@ describe("AutofillService", () => {
       jest.spyOn(autofillService, "injectAutofillScripts");
 
       await autofillService.loadAutofillScriptsOnInstall();
+      await flushPromises();
 
       expect(BrowserApi.tabsQuery).toHaveBeenCalledWith({});
       expect(autofillService.injectAutofillScripts).toHaveBeenCalledWith(tab1, 0, false);
diff --git a/apps/browser/src/autofill/services/autofill.service.ts b/apps/browser/src/autofill/services/autofill.service.ts
index ef051e5912b..4c37cd1f07f 100644
--- a/apps/browser/src/autofill/services/autofill.service.ts
+++ b/apps/browser/src/autofill/services/autofill.service.ts
@@ -2136,7 +2136,8 @@ export default class AutofillService implements AutofillServiceInterface {
     for (let index = 0; index < tabs.length; index++) {
       const tab = tabs[index];
       if (tab.url?.startsWith("http")) {
-        void this.injectAutofillScripts(tab, 0, false);
+        const frames = await BrowserApi.getAllFrameDetails(tab.id);
+        frames.forEach((frame) => this.injectAutofillScripts(tab, frame.frameId, false));
       }
     }
   }
diff --git a/apps/browser/src/manifest.v3.json b/apps/browser/src/manifest.v3.json
index 26b63b1229f..ed35ab3021f 100644
--- a/apps/browser/src/manifest.v3.json
+++ b/apps/browser/src/manifest.v3.json
@@ -62,7 +62,8 @@
     "scripting",
     "offscreen",
     "webRequest",
-    "webRequestAuthProvider"
+    "webRequestAuthProvider",
+    "webNavigation"
   ],
   "optional_permissions": ["nativeMessaging", "privacy"],
   "host_permissions": ["https://*/*", "http://*/*"],
diff --git a/apps/browser/src/platform/browser/browser-api.spec.ts b/apps/browser/src/platform/browser/browser-api.spec.ts
index 7e0c61c9d17..adf248707c2 100644
--- a/apps/browser/src/platform/browser/browser-api.spec.ts
+++ b/apps/browser/src/platform/browser/browser-api.spec.ts
@@ -235,6 +235,46 @@ describe("BrowserApi", () => {
     });
   });
 
+  describe("getFrameDetails", () => {
+    it("returns the frame details of the specified frame", async () => {
+      const tabId = 1;
+      const frameId = 2;
+      const mockFrameDetails = mock<chrome.webNavigation.GetFrameResultDetails>();
+      chrome.webNavigation.getFrame = jest
+        .fn()
+        .mockImplementation((_details, callback) => callback(mockFrameDetails));
+
+      const returnFrame = await BrowserApi.getFrameDetails({ tabId, frameId });
+
+      expect(chrome.webNavigation.getFrame).toHaveBeenCalledWith(
+        { tabId, frameId },
+        expect.any(Function),
+      );
+      expect(returnFrame).toEqual(mockFrameDetails);
+    });
+  });
+
+  describe("getAllFrameDetails", () => {
+    it("returns all sub frame details of the specified tab", async () => {
+      const tabId = 1;
+      const mockFrameDetails1 = mock<chrome.webNavigation.GetAllFrameResultDetails>();
+      const mockFrameDetails2 = mock<chrome.webNavigation.GetAllFrameResultDetails>();
+      chrome.webNavigation.getAllFrames = jest
+        .fn()
+        .mockImplementation((_details, callback) =>
+          callback([mockFrameDetails1, mockFrameDetails2]),
+        );
+
+      const frames = await BrowserApi.getAllFrameDetails(tabId);
+
+      expect(chrome.webNavigation.getAllFrames).toHaveBeenCalledWith(
+        { tabId },
+        expect.any(Function),
+      );
+      expect(frames).toEqual([mockFrameDetails1, mockFrameDetails2]);
+    });
+  });
+
   describe("reloadExtension", () => {
     it("reloads the window location if the passed globalContext is for the window", () => {
       const windowMock = mock<Window>({
diff --git a/apps/browser/src/platform/browser/browser-api.ts b/apps/browser/src/platform/browser/browser-api.ts
index d0695d53fd1..0d461a69830 100644
--- a/apps/browser/src/platform/browser/browser-api.ts
+++ b/apps/browser/src/platform/browser/browser-api.ts
@@ -176,21 +176,21 @@ export class BrowserApi {
     return BrowserApi.tabSendMessage(tab, obj);
   }
 
-  static async tabSendMessage<T>(
+  static async tabSendMessage<T, TResponse = unknown>(
     tab: chrome.tabs.Tab,
     obj: T,
     options: chrome.tabs.MessageSendOptions = null,
-  ): Promise<void> {
+  ): Promise<TResponse> {
     if (!tab || !tab.id) {
       return;
     }
 
-    return new Promise<void>((resolve) => {
-      chrome.tabs.sendMessage(tab.id, obj, options, () => {
+    return new Promise<TResponse>((resolve) => {
+      chrome.tabs.sendMessage(tab.id, obj, options, (response) => {
         if (chrome.runtime.lastError) {
           // Some error happened
         }
-        resolve();
+        resolve(response);
       });
     });
   }
@@ -263,6 +263,28 @@ export class BrowserApi {
     );
   }
 
+  /**
+   * Gathers the details for a specified sub-frame of a tab.
+   *
+   * @param details - The details of the frame to get.
+   */
+  static async getFrameDetails(
+    details: chrome.webNavigation.GetFrameDetails,
+  ): Promise<chrome.webNavigation.GetFrameResultDetails> {
+    return new Promise((resolve) => chrome.webNavigation.getFrame(details, resolve));
+  }
+
+  /**
+   * Gets all frames associated with a tab.
+   *
+   * @param tabId - The id of the tab to get the frames for.
+   */
+  static async getAllFrameDetails(
+    tabId: chrome.tabs.Tab["id"],
+  ): Promise<chrome.webNavigation.GetAllFrameResultDetails[]> {
+    return new Promise((resolve) => chrome.webNavigation.getAllFrames({ tabId }, resolve));
+  }
+
   // Keep track of all the events registered in a Safari popup so we can remove
   // them when the popup gets unloaded, otherwise we cause a memory leak
   private static trackedChromeEventListeners: [
diff --git a/apps/browser/test.setup.ts b/apps/browser/test.setup.ts
index 5435c6fd7fe..16ebdcbc605 100644
--- a/apps/browser/test.setup.ts
+++ b/apps/browser/test.setup.ts
@@ -135,6 +135,8 @@ const permissions = {
 };
 
 const webNavigation = {
+  getFrame: jest.fn(),
+  getAllFrames: jest.fn(),
   onCommitted: {
     addListener: jest.fn(),
     removeListener: jest.fn(),