chore: Bump Firefox outdated browser version

The outdated browser version for Firefox has been bumped to 102. Users
on older versions of Firefox will now see a warning saying that their
browser is outdated. This is inpreparation for updating our minimum
supported Firefox version to 102.

102 is the previous ESR version, which matches our browser support
policy (we support the current and previous ESR Firefox versions).

Author: Gudahtt

ui/helpers/constants/common.ts

@@ -21,8 +21,10 @@ export const OUTDATED_BROWSER_VERSIONS = {
   // or the earliest version that supports our MV3 functionality, whichever is higher
   chrome: '<109',
   edge: '<109',
-  // Firefox should match the most recent end-of-life extended support release
-  firefox: '<91',
+  // Firefox should match the previous extended support release
+  // Current ESR: 115
+  // Previous ESR: 102
+  firefox: '<102',
   // Opera versions correspond to differently numbered Chromium versions.
   // Opera should be set to the equivalent of the Chromium version set
   // Opera 95 is based on Chromium 109

ui/helpers/utils/util.test.js

@@ -218,14 +218,14 @@ describe('util', () => {
     });
     it('should return false when given a modern firefox browser', () => {
       const browser = Bowser.getParser(
-        'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/91.0',
+        'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/102.0',
       );
       const result = util.getIsBrowserDeprecated(browser);
       expect(result).toStrictEqual(false);
     });
     it('should return true when given an outdated firefox browser', () => {
       const browser = Bowser.getParser(
-        'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0) Gecko/20100101 Firefox/90.0',
+        'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0) Gecko/20100101 Firefox/91.0',
       );
       const result = util.getIsBrowserDeprecated(browser);
       expect(result).toStrictEqual(true);