diff --git a/apps/browser/src/autofill/content/notification-bar.ts b/apps/browser/src/autofill/content/notification-bar.ts
index e5b2fcb4af..f4f7c74ed7 100644
--- a/apps/browser/src/autofill/content/notification-bar.ts
+++ b/apps/browser/src/autofill/content/notification-bar.ts
@@ -870,7 +870,7 @@ async function loadNotificationBar() {
       return;
     }
 
-    const barPageUrl: string = chrome.extension.getURL(barPage);
+    const barPageUrl: string = chrome.runtime.getURL(barPage);
 
     const iframe = document.createElement("iframe");
     iframe.style.cssText = "height: 42px; width: 100%; border: 0; min-height: initial;";
diff --git a/apps/browser/src/platform/browser/browser-api.spec.ts b/apps/browser/src/platform/browser/browser-api.spec.ts
index 1d11edb92e..bb1aa5ff1d 100644
--- a/apps/browser/src/platform/browser/browser-api.spec.ts
+++ b/apps/browser/src/platform/browser/browser-api.spec.ts
@@ -106,6 +106,143 @@ describe("BrowserApi", () => {
     });
   });
 
+  describe("getBackgroundPage", () => {
+    it("returns a null value if the `getBackgroundPage` method is not available", () => {
+      chrome.extension.getBackgroundPage = undefined;
+
+      const result = BrowserApi.getBackgroundPage();
+
+      expect(result).toBeNull();
+    });
+
+    it("returns the background page if the `getBackgroundPage` method is available", () => {
+      chrome.extension.getBackgroundPage = jest.fn().mockReturnValue(window);
+
+      const result = BrowserApi.getBackgroundPage();
+
+      expect(result).toEqual(window);
+    });
+  });
+
+  describe("isBackgroundPage", () => {
+    it("returns false if the passed window is `undefined`", () => {
+      const result = BrowserApi.isBackgroundPage(undefined);
+
+      expect(result).toBe(false);
+    });
+
+    it("returns false if the current window is not the background page", () => {
+      chrome.extension.getBackgroundPage = jest.fn().mockReturnValue(null);
+
+      const result = BrowserApi.isBackgroundPage(window);
+
+      expect(result).toBe(false);
+    });
+
+    it("returns true if the current window is the background page", () => {
+      chrome.extension.getBackgroundPage = jest.fn().mockReturnValue(window);
+
+      const result = BrowserApi.isBackgroundPage(window);
+
+      expect(result).toBe(true);
+    });
+  });
+
+  describe("getExtensionViews", () => {
+    it("returns an empty array if the `getViews` method is not available", () => {
+      chrome.extension.getViews = undefined;
+
+      const result = BrowserApi.getExtensionViews();
+
+      expect(result).toEqual([]);
+    });
+
+    it("returns the extension views if the `getViews` method is available", () => {
+      const views = [window];
+      chrome.extension.getViews = jest.fn().mockReturnValue(views);
+
+      const result = BrowserApi.getExtensionViews();
+
+      expect(result).toEqual(views);
+    });
+  });
+
+  describe("isPopupOpen", () => {
+    it("returns true if the popup is open", async () => {
+      chrome.extension.getViews = jest.fn().mockReturnValue([window]);
+
+      const result = await BrowserApi.isPopupOpen();
+
+      expect(result).toBe(true);
+    });
+
+    it("returns false if the popup is not open", async () => {
+      chrome.extension.getViews = jest.fn().mockReturnValue([]);
+
+      const result = await BrowserApi.isPopupOpen();
+
+      expect(result).toBe(false);
+    });
+  });
+
+  describe("reloadOpenWindows", () => {
+    const href = window.location.href;
+    const reload = window.location.reload;
+
+    afterEach(() => {
+      window.location.href = href;
+      window.location.reload = reload;
+    });
+
+    it("reloads all open windows", () => {
+      Object.defineProperty(window, "location", {
+        value: { reload: jest.fn(), href: "chrome-extension://id-value/index.html" },
+        writable: true,
+      });
+      const views = [window];
+      chrome.extension.getViews = jest.fn().mockReturnValue(views);
+
+      BrowserApi.reloadOpenWindows();
+
+      expect(window.location.reload).toHaveBeenCalledTimes(views.length);
+    });
+
+    it("skips reloading the background page", () => {
+      Object.defineProperty(window, "location", {
+        value: { reload: jest.fn(), href: "chrome-extension://id-value/background.html" },
+        writable: true,
+      });
+      const views = [window];
+      chrome.extension.getViews = jest.fn().mockReturnValue(views);
+      chrome.extension.getBackgroundPage = jest.fn().mockReturnValue(window);
+
+      BrowserApi.reloadOpenWindows();
+
+      expect(window.location.reload).toHaveBeenCalledTimes(0);
+    });
+
+    it("skips reloading the current href if it is exempt", () => {
+      Object.defineProperty(window, "location", {
+        value: { reload: jest.fn(), href: "chrome-extension://id-value/index.html" },
+        writable: true,
+      });
+      const mockWindow = mock<Window>({
+        location: {
+          href: "chrome-extension://id-value/sidebar.html",
+          reload: jest.fn(),
+        },
+      });
+      const views = [window, mockWindow];
+      chrome.extension.getViews = jest.fn().mockReturnValue(views);
+      window.location.href = "chrome-extension://id-value/index.html";
+
+      BrowserApi.reloadOpenWindows(true);
+
+      expect(window.location.reload).toHaveBeenCalledTimes(0);
+      expect(mockWindow.location.reload).toHaveBeenCalledTimes(1);
+    });
+  });
+
   describe("executeScriptInTab", () => {
     it("calls to the extension api to execute a script within the give tabId", async () => {
       const tabId = 1;
diff --git a/apps/browser/src/platform/browser/browser-api.ts b/apps/browser/src/platform/browser/browser-api.ts
index b4c53363cc..83cfaaa9e7 100644
--- a/apps/browser/src/platform/browser/browser-api.ts
+++ b/apps/browser/src/platform/browser/browser-api.ts
@@ -199,20 +199,54 @@ export class BrowserApi {
     return chrome.windows.onCreated.addListener(callback);
   }
 
+  /**
+   * Gets the background page for the extension. This method is
+   * not valid within manifest v3 background service workers. As
+   * a result, it will return null when called from that context.
+   */
   static getBackgroundPage(): any {
+    if (typeof chrome.extension.getBackgroundPage === "undefined") {
+      return null;
+    }
+
     return chrome.extension.getBackgroundPage();
   }
 
+  /**
+   * Accepts a window object and determines if it is
+   * associated with the background page of the extension.
+   *
+   * @param window - The window to check.
+   */
   static isBackgroundPage(window: Window & typeof globalThis): boolean {
-    return window === chrome.extension.getBackgroundPage();
+    return typeof window !== "undefined" && window === BrowserApi.getBackgroundPage();
   }
 
   static getApplicationVersion(): string {
     return chrome.runtime.getManifest().version;
   }
 
+  /**
+   * Gets the extension views that match the given properties. This method is not
+   * available within background service worker. As a result, it will return an
+   * empty array when called from that context.
+   *
+   * @param fetchProperties - The properties used to filter extension views.
+   */
+  static getExtensionViews(fetchProperties?: chrome.extension.FetchProperties): Window[] {
+    if (typeof chrome.extension.getViews === "undefined") {
+      return [];
+    }
+
+    return chrome.extension.getViews(fetchProperties);
+  }
+
+  /**
+   * Queries all extension views that are of type `popup`
+   * and returns whether any are currently open.
+   */
   static async isPopupOpen(): Promise<boolean> {
-    return Promise.resolve(chrome.extension.getViews({ type: "popup" }).length > 0);
+    return Promise.resolve(BrowserApi.getExtensionViews({ type: "popup" }).length > 0);
   }
 
   static createNewTab(url: string, active = true): Promise<chrome.tabs.Tab> {
@@ -355,15 +389,19 @@ export class BrowserApi {
     }
   }
 
+  /**
+   * Reloads all open extension views, except the background page. Will also
+   * skip reloading the current window location if exemptCurrentHref is true.
+   *
+   * @param exemptCurrentHref - Whether to exempt the current window location from the reload.
+   */
   static reloadOpenWindows(exemptCurrentHref = false) {
-    const currentHref = window.location.href;
-    const views = chrome.extension.getViews() as Window[];
+    const currentHref = window?.location.href;
+    const views = BrowserApi.getExtensionViews();
     views
       .filter((w) => w.location.href != null && !w.location.href.includes("background.html"))
       .filter((w) => !exemptCurrentHref || w.location.href !== currentHref)
-      .forEach((w) => {
-        w.location.reload();
-      });
+      .forEach((w) => w.location.reload());
   }
 
   static connectNative(application: string): browser.runtime.Port | chrome.runtime.Port {
diff --git a/apps/browser/src/platform/services/browser-platform-utils.service.spec.ts b/apps/browser/src/platform/services/browser-platform-utils.service.spec.ts
index 964200dfce..11afabed64 100644
--- a/apps/browser/src/platform/services/browser-platform-utils.service.spec.ts
+++ b/apps/browser/src/platform/services/browser-platform-utils.service.spec.ts
@@ -3,9 +3,14 @@ import { DeviceType } from "@bitwarden/common/enums";
 import BrowserPlatformUtilsService from "./browser-platform-utils.service";
 
 describe("Browser Utils Service", () => {
+  let browserPlatformUtilsService: BrowserPlatformUtilsService;
+  beforeEach(() => {
+    (window as any).matchMedia = jest.fn().mockReturnValueOnce({});
+    browserPlatformUtilsService = new BrowserPlatformUtilsService(null, null, null, window);
+  });
+
   describe("getBrowser", () => {
     const originalUserAgent = navigator.userAgent;
-
     // Reset the userAgent.
     afterAll(() => {
       Object.defineProperty(navigator, "userAgent", {
@@ -13,10 +18,8 @@ describe("Browser Utils Service", () => {
       });
     });
 
-    let browserPlatformUtilsService: BrowserPlatformUtilsService;
     beforeEach(() => {
       (window as any).matchMedia = jest.fn().mockReturnValueOnce({});
-      browserPlatformUtilsService = new BrowserPlatformUtilsService(null, null, null, window);
     });
 
     afterEach(() => {
@@ -86,6 +89,45 @@ describe("Browser Utils Service", () => {
       expect(browserPlatformUtilsService.getDevice()).toBe(DeviceType.VivaldiExtension);
     });
   });
+
+  describe("isViewOpen", () => {
+    beforeEach(() => {
+      globalThis.chrome = {
+        // eslint-disable-next-line
+        // @ts-ignore
+        extension: {
+          getViews: jest.fn(),
+        },
+      };
+    });
+
+    it("returns true if the user is on Firefox and the sidebar is open", async () => {
+      chrome.extension.getViews = jest.fn().mockReturnValueOnce([window]);
+      jest
+        .spyOn(browserPlatformUtilsService, "getDevice")
+        .mockReturnValueOnce(DeviceType.FirefoxExtension);
+
+      const result = await browserPlatformUtilsService.isViewOpen();
+
+      expect(result).toBe(true);
+    });
+
+    it("returns true if a extension view is open as a tab", async () => {
+      chrome.extension.getViews = jest.fn().mockReturnValueOnce([window]);
+
+      const result = await browserPlatformUtilsService.isViewOpen();
+
+      expect(result).toBe(true);
+    });
+
+    it("returns false if no extension view is open", async () => {
+      chrome.extension.getViews = jest.fn().mockReturnValue([]);
+
+      const result = await browserPlatformUtilsService.isViewOpen();
+
+      expect(result).toBe(false);
+    });
+  });
 });
 
 describe("Safari Height Fix", () => {
diff --git a/apps/browser/src/platform/services/browser-platform-utils.service.ts b/apps/browser/src/platform/services/browser-platform-utils.service.ts
index 733e121ee1..63f5b0345c 100644
--- a/apps/browser/src/platform/services/browser-platform-utils.service.ts
+++ b/apps/browser/src/platform/services/browser-platform-utils.service.ts
@@ -160,12 +160,12 @@ export default class BrowserPlatformUtilsService implements PlatformUtilsService
     }
 
     // Opera has "sidebar_panel" as a ViewType but doesn't currently work
-    if (this.isFirefox() && chrome.extension.getViews({ type: "sidebar" }).length > 0) {
+    if (this.isFirefox() && BrowserApi.getExtensionViews({ type: "sidebar" }).length > 0) {
       return true;
     }
 
     // Opera sidebar has type of "tab" (will stick around for a while after closing sidebar)
-    const tabOpen = chrome.extension.getViews({ type: "tab" }).length > 0;
+    const tabOpen = BrowserApi.getExtensionViews({ type: "tab" }).length > 0;
     return tabOpen;
   }
 
diff --git a/apps/browser/test.setup.ts b/apps/browser/test.setup.ts
index 9f787d8109..58a54475c6 100644
--- a/apps/browser/test.setup.ts
+++ b/apps/browser/test.setup.ts
@@ -105,6 +105,11 @@ const privacy = {
   },
 };
 
+const extension = {
+  getBackgroundPage: jest.fn(),
+  getViews: jest.fn(),
+};
+
 // set chrome
 global.chrome = {
   i18n,
@@ -116,4 +121,5 @@ global.chrome = {
   windows,
   port,
   privacy,
+  extension,
 } as any;