feat(firefox): roll to r1539

[microsoft-playwright-automation]

Browser build: https://github.com/microsoft/playwright-browsers/commit/a789daa9702db10ba7e137c4d1ee46f728a4caad. Build has full platform coverage - check that all tests pass there.

[github-actions]

Test results for "tests 1"

10 flaky

⚠️ [chromium-library] › library/chromium/chromium.spec.ts:299 › should report intercepted service worker requests in HAR `@frozen-time-library-chromium-linux`
⚠️ [chromium-library] › library/video.spec.ts:664 › screencast › should capture full viewport `@chromium-ubuntu-22.04-arm-node20`
⚠️ [chromium-library] › library/video.spec.ts:699 › screencast › should capture full viewport on hidpi `@realtime-time-library-chromium-linux`
⚠️ [chromium-library] › library/video.spec.ts:736 › screencast › should work with video+trace `@realtime-time-library-chromium-linux`
⚠️ [chromium-library] › library/video.spec.ts:736 › screencast › should work with video+trace `@chromium-ubuntu-22.04-node24`
⚠️ [chromium-library] › library/chromium/oopif.spec.ts:282 › should click `@chromium-ubuntu-22.04-node20`
⚠️ [chromium-library] › library/video.spec.ts:495 › screencast › should capture static page in persistent context Radoslav Kirilov (@smoke) `@chromium-ubuntu-22.04-node20`
⚠️ [chromium-library] › library/video.spec.ts:736 › screencast › should work with video+trace `@chromium-ubuntu-22.04-node20`
⚠️ [chromium-library] › library/popup.spec.ts:260 › should not throw when click closes popup `@chromium-ubuntu-22.04-node22`
⚠️ [playwright-test] › ui-mode-test-update.spec.ts:202 › should update test locations `@ubuntu-latest-node22`

50589 passed, 1190 skipped

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Merge workflow run.

[github-actions]

Test results for "MCP"

1 failed
❌ [firefox] › mcp/cli-core.spec.ts:168 › dialog-accept @mcp-windows-latest-firefox

7794 passed, 1266 skipped

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Merge workflow run.

[github-actions]

Test results for "tests 2"

5 failed
❌ [chromium-library] › library/debug-controller.spec.ts:176 › should record @msedge-dev-windows-latest
❌ [chromium-library] › library/debug-controller.spec.ts:211 › should record expect signal @msedge-dev-windows-latest
❌ [chromium-library] › library/debug-controller.spec.ts:176 › should record @msedge-windows-latest
❌ [chromium-library] › library/debug-controller.spec.ts:211 › should record expect signal @msedge-windows-latest
❌ [webkit-library] › library/browsercontext-locale.spec.ts:192 › should send user Accept-Language header @webkit-windows-latest

21 flaky

⚠️ [chromium-library] › library/chromium/chromium.spec.ts:211 › should intercept service worker requests (main and within) `@tracing-chromium`
⚠️ [chromium-page] › page/page-screenshot.spec.ts:504 › page screenshot › should take fullPage screenshots during navigation `@tracing-chromium`
⚠️ [chromium-library] › library/chromium/chromium.spec.ts:299 › should report intercepted service worker requests in HAR `@chrome-ubuntu-22.04`
⚠️ [chromium-library] › library/video.spec.ts:736 › screencast › should work with video+trace `@chromium-windows-latest`
⚠️ [chromium-page] › page/workers.spec.ts:63 › should have timestamp on worker console messages `@chromium-windows-latest`
⚠️ [chromium-library] › library/browsertype-connect.spec.ts:189 › launchServer › should ignore page.pause when headed `@chromium-macos-15-large`
⚠️ [chromium-library] › library/chromium/chromium.spec.ts:211 › should intercept service worker requests (main and within) `@chromium-macos-15-large`
⚠️ [chromium-library] › library/video.spec.ts:664 › screencast › should capture full viewport `@chromium-macos-15-large`
⚠️ [chromium-library] › library/browsertype-connect.spec.ts:189 › launchServer › should ignore page.pause when headed `@chromium-macos-15-xlarge`
⚠️ [chromium-library] › library/video.spec.ts:699 › screencast › should capture full viewport on hidpi `@chromium-macos-15-xlarge`
⚠️ [chromium-library] › library/debug-controller.spec.ts:176 › should record `@chrome-windows-latest`
⚠️ [chromium-library] › library/chromium/chromium.spec.ts:434 › should produce network events, routing, and annotations for Service Worker (advanced) `@driver`
⚠️ [firefox-page] › page/page-goto.spec.ts:81 › should work with Cross-Origin-Opener-Policy `@tracing-firefox`
⚠️ [firefox-library] › library/hit-target.spec.ts:366 › should detect overlaid element in a transformed iframe `@firefox-macos-15-large`
⚠️ [firefox-library] › library/downloads-path.spec.ts:91 › downloads path › should accept downloads in persistent context `@firefox-windows-latest`
⚠️ [firefox-library] › library/inspector/cli-codegen-csharp.spec.ts:28 › should print the correct imports and context options `@firefox-windows-latest`
⚠️ [firefox-library] › library/inspector/cli-codegen-python.spec.ts:76 › should save the codegen output to a file if specified `@firefox-windows-latest`
⚠️ [webkit-library] › library/trace-viewer.spec.ts:1932 › canvas clipping `@webkit-macos-15-xlarge`
⚠️ [webkit-page] › page/locator-query.spec.ts:276 › count() should not throw during navigation `@webkit-macos-15-large`
⚠️ [webkit-page] › page/page-request-continue.spec.ts:194 › post data › should compute content-length from post data `@webkit-macos-15-large`
⚠️ [android-page] › page/page-request-fulfill.spec.ts:81 › should fulfill with unuassigned status codes

108553 passed, 4593 skipped

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Merge workflow run.