AG-55338 Stop sending app_id while checking for filters updates

Squashed commit of the following:

commit 058bebb
Merge: d6808ab 97431e4
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Tue Jun 23 16:02:35 2026 +0300

    Merge branch 'release/v5.5' into enhance/AG-55338

commit d6808ab
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 17:05:13 2026 +0300

    update docs

commit 780ea55
Merge: b5a8704 01840d9
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 17:02:59 2026 +0300

    Merge branch 'release/v5.5' into enhance/AG-55338

commit b5a8704
Merge: 45b9548 befb052
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 17:02:23 2026 +0300

    Merge branch 'enhance/AG-54740' into enhance/AG-55338

commit befb052
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 16:58:46 2026 +0300

    add tests

commit e377884
Merge: d6e4a76 04dd87c
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 16:21:02 2026 +0300

    Merge branch 'release/v5.5' into enhance/AG-54740

commit 45b9548
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 16:06:31 2026 +0300

    AG-55338 Stop sending app_id while checking for filters updates

commit d6e4a76
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 15:06:49 2026 +0300

    Add last checked time display in FiltersUpdate component

commit b6ac332
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 13:59:19 2026 +0300

    refactor

commit bc3e316
Merge: e4f4713 7da1ce8
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 02:51:33 2026 +0300

    Merge branch 'release/v5.5' into enhance/AG-54740

commit e4f4713
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Fri Jun 19 02:22:03 2026 +0300

    refactoring

commit aab6ffa
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Mon Jun 15 20:50:34 2026 +0300

    fix tests

commit c073c67
Merge: 4bc0f9d 1e56d94
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Mon Jun 15 18:40:53 2026 +0300

    Merge branch 'release/v5.5' into enhance/AG-54740

commit 4bc0f9d
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Thu Jun 11 15:58:43 2026 +0300

    revert update TSURLFILTER_REF to point to release/browser-extension-v5.5

commit 6645e75
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Thu Jun 11 15:57:40 2026 +0300

    Update TSURLFILTER_REF to point to release/browser-extension-v5.5

commit 1930b3c
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Thu Jun 11 15:25:16 2026 +0300

    add tests, refactoring

commit 5977589
Author: Alexandr Zaitsev <a.zaitsev@adguard.com>
Date:   Thu Jun 11 14:42:58 2026 +0300

    AG-54740 Add "last updated" field to Filters tab of mv3 extension

Author: Zauats

Extension/src/background/utils/browser-utils.ts

@@ -18,7 +18,6 @@
  * along with AdGuard Browser Extension. If not, see <http://www.gnu.org/licenses/>.
  */
 import { Prefs } from '../prefs';
-import { appContext, AppContextKey } from '../storages/app';
 import { CHROME_EXTENSIONS_SETTINGS_URL } from '../../common/constants';
 import { logger } from '../../common/logger';
 
@@ -29,35 +28,20 @@ import { Version } from './version';
  */
 export class BrowserUtils {
     /**
-     * Returns extension specified query params.
-     * This method called on app metadata, i18n metadata and thankyou page url calculation.
+     * Returns extension query params shared across filter metadata URLs and thankyou page.
      *
      * @see NetworkSettings#filtersMetadataUrl
      * @see NetworkSettings#filtersI18nMetadataUrl
      * @see PagesApi.openThankYouPage
      *
      * @returns Extension specified query params array.
-     *
-     * @throws Error if client id is undefined.
      */
     public static getExtensionParams(): string[] {
-        const persistedClientId = appContext.get(AppContextKey.ClientId);
-
-        if (typeof persistedClientId !== 'string') {
-            throw new Error('client id is not found');
-        }
-
-        const clientId = encodeURIComponent(persistedClientId);
-        const locale = encodeURIComponent(Prefs.language);
-        const version = encodeURIComponent(Prefs.version);
-        const id = encodeURIComponent(Prefs.id);
-
-        const params: string[] = [];
-        params.push(`v=${version}`);
-        params.push(`cid=${clientId}`);
-        params.push(`lang=${locale}`);
-        params.push(`id=${id}`);
-        return params;
+        return [
+            `v=${encodeURIComponent(Prefs.version)}`,
+            `lang=${encodeURIComponent(Prefs.language)}`,
+            `id=${encodeURIComponent(Prefs.id)}`,
+        ];
     }
 
     /**

tests/src/background/api/ui/pages.test.ts

@@ -34,7 +34,6 @@ import { SettingsApi } from '../../../../../Extension/src/background/api/setting
 import { FilterStateStorage } from '../../../../../Extension/src/background/storages/filter-state';
 import { GroupStateStorage } from '../../../../../Extension/src/background/storages/group-state';
 import { ForwardFrom } from '../../../../../Extension/src/common/forward';
-import { appContext, AppContextKey } from '../../../../../Extension/src/background/storages/app';
 import { browserStorage } from '../../../../../Extension/src/background/storages/shared-instances';
 import { TabsApi, WindowsApi } from '../../../../../Extension/src/common/api/extension';
 
@@ -211,9 +210,6 @@ describe('PagesApi', () => {
         });
 
         it('openThankYouPage produces a valid URL', async () => {
-            // openThankYouPage requires a client ID to be set
-            appContext.set(AppContextKey.ClientId, 'test-client-id');
-
             await pagesApi.openThankYouPage();
 
             const spy = vi.mocked(browser.tabs.create);

tests/src/background/utils/browser-utils.test.ts

@@ -79,5 +79,24 @@ describe('browserUtils', () => {
         });
     });
 
+    describe('getExtensionParams', () => {
+        it('does not contain cid parameter', () => {
+            const params = BrowserUtils.getExtensionParams();
+
+            const cidParam = params.find((p) => p.startsWith('cid='));
+            expect(cidParam).toBeUndefined();
+        });
+
+        it('returns only v, lang, and id', () => {
+            const params = BrowserUtils.getExtensionParams();
+
+            const keys = params.map((p) => p.split('=')[0]);
+            expect(keys).toContain('v');
+            expect(keys).toContain('lang');
+            expect(keys).toContain('id');
+            expect(params).toHaveLength(3);
+        });
+    });
+
     // TODO: cover other cases
 });