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bugzilla-data-all.json

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bugzilla-data-high.json

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{"bugs":[{"op_sys":"Unspecified","summary":"H3 upload Speed still slow. Three times slower than other browsers.","component":"Networking: HTTP","severity":"S2","creation_time":"2023-09-13T10:36:04Z","last_change_time":"2025-09-22T17:43:02Z","id":1852924,"priority":"P1","keywords":["leave-open","perf:responsiveness","reproducible","top50","webcompat:platform-bug"],"status":"ASSIGNED"},{"op_sys":"All","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","component":"Password Manager","creation_time":"2025-05-01T13:52:50Z","severity":"--","last_change_time":"2025-07-03T16:42:57Z","keywords":[],"status":"ASSIGNED","priority":"--","id":1963814},{"component":"Widget: Cocoa","op_sys":"Unspecified","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","last_change_time":"2025-07-01T19:28:26Z","status":"NEW","keywords":["perf:responsiveness"],"priority":"P3","id":1602842,"creation_time":"2019-12-10T17:22:25Z","severity":"S3"},{"component":"Panning and Zooming","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process","op_sys":"Unspecified","status":"NEW","keywords":["perf:responsiveness"],"priority":"--","id":1677509,"last_change_time":"2025-05-28T19:20:30Z","creation_time":"2020-11-16T15:30:13Z","severity":"S3"},{"summary":"Lazy font loading can still hang the main thread on Windows","op_sys":"Windows","component":"Layout: Text and Fonts","severity":"S3","creation_time":"2021-01-26T19:14:50Z","priority":"--","id":1688951,"status":"NEW","keywords":["perf:responsiveness"],"last_change_time":"2025-08-22T20:22:21Z"},{"creation_time":"2021-01-28T16:03:57Z","severity":"--","last_change_time":"2025-03-11T08:41:57Z","keywords":["meta"],"status":"NEW","id":1689392,"priority":"--","op_sys":"Unspecified","summary":"[Meta] investigate performance issues on Reddit.","component":"Performance: General"},{"creation_time":"2022-05-25T16:56:04Z","severity":"S3","status":"NEW","keywords":["perf:resource-use","reproducible"],"id":1771179,"priority":"P2","last_change_time":"2025-09-17T01:08:29Z","summary":"AudioContext power optimizations","op_sys":"Unspecified","component":"Web Audio"},{"op_sys":"Unspecified","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","component":"Performance","creation_time":"2022-08-31T21:19:22Z","severity":"S2","last_change_time":"2025-03-10T23:42:15Z","status":"NEW","keywords":["perf:resource-use","perf:responsiveness","reproducible"],"priority":"P2","id":1788530},{"creation_time":"2023-04-05T14:45:37Z","severity":"S3","status":"NEW","keywords":["webcompat:platform-bug"],"priority":"--","id":1826576,"last_change_time":"2025-10-30T20:58:10Z","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","op_sys":"Android","component":"Graphics: WebRender"},{"last_change_time":"2025-10-13T08:56:16Z","priority":"P3","id":1849393,"status":"NEW","keywords":["perf","perf:responsiveness"],"severity":"S3","creation_time":"2023-08-18T17:52:57Z","component":"Session Restore","op_sys":"Unspecified","summary":"Firefox regularly hangs for over half a second in SessionWriter.sys.mjs calling IOUtils.writeJSON serializing a massive JS object when saving tab state"},{"summary":"Frequent long janks on Android on loading certain pages","op_sys":"Unspecified","component":"Storage: Quota Manager","severity":"S2","creation_time":"2024-06-19T11:50:31Z","priority":"P2","id":1903530,"status":"NEW","keywords":[],"last_change_time":"2025-11-05T15:23:53Z"},{"component":"Site Reports","summary":"vizzy.io - The browser is slowed down and eventually stops responding","op_sys":"Windows 10","keywords":["webcompat:needs-contact","webcompat:site-report"],"status":"NEW","priority":"P2","id":1928948,"last_change_time":"2025-03-20T03:11:36Z","creation_time":"2024-11-04T09:34:27Z","severity":"S2"},{"status":"NEW","keywords":[],"id":1963578,"priority":"P1","last_change_time":"2025-10-28T13:50:08Z","creation_time":"2025-04-30T12:23:32Z","severity":"S2","component":"JavaScript Engine","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","op_sys":"Unspecified"},{"last_change_time":"2025-07-04T18:23:19Z","id":1971873,"priority":"P3","status":"NEW","keywords":["perf:pageload"],"severity":"S3","creation_time":"2025-06-12T19:54:27Z","component":"Performance: Navigation","op_sys":"Android","summary":"m.facebook.com live site loads 100-200ms slower in Fenix than Chrome"},{"severity":"S2","creation_time":"2025-10-22T15:48:12Z","last_change_time":"2025-11-03T18:28:20Z","id":1995805,"priority":"P3","keywords":[],"status":"NEW","op_sys":"Unspecified","summary":"Fenix cold start applink navigation performance ~1500ms slower than warm, hot scenarios, p75","component":"Performance Engineering"},{"last_change_time":"2025-07-01T14:09:09Z","status":"REOPENED","keywords":["perf:responsiveness","perf:startup","reproducible"],"id":1550754,"priority":"--","creation_time":"2019-05-10T14:52:25Z","severity":"S3","component":"Crash Reporting","op_sys":"Unspecified","summary":"ContentParent::KillHard janks the main thread"}]}
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{"bugs":[{"summary":"H3 upload Speed still slow. Three times slower than other browsers.","status":"ASSIGNED","last_change_time":"2025-09-22T17:43:02Z","creation_time":"2023-09-13T10:36:04Z","component":"Networking: HTTP","severity":"S2","keywords":["leave-open","perf:responsiveness","reproducible","top50","webcompat:platform-bug"],"priority":"P1","op_sys":"Unspecified","id":1852924},{"component":"Password Manager","op_sys":"All","id":1963814,"priority":"--","severity":"--","keywords":[],"status":"ASSIGNED","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","creation_time":"2025-05-01T13:52:50Z","last_change_time":"2025-07-03T16:42:57Z"},{"summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","status":"NEW","last_change_time":"2025-07-01T19:28:26Z","creation_time":"2019-12-10T17:22:25Z","component":"Widget: Cocoa","priority":"P3","severity":"S3","keywords":["perf:responsiveness"],"id":1602842,"op_sys":"Unspecified"},{"id":1677509,"op_sys":"Unspecified","severity":"S3","keywords":["perf:responsiveness"],"priority":"--","component":"Panning and Zooming","creation_time":"2020-11-16T15:30:13Z","last_change_time":"2025-05-28T19:20:30Z","status":"NEW","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process"},{"id":1688951,"op_sys":"Windows","severity":"S3","keywords":["perf:responsiveness"],"priority":"--","component":"Layout: Text and Fonts","creation_time":"2021-01-26T19:14:50Z","last_change_time":"2025-08-22T20:22:21Z","status":"NEW","summary":"Lazy font loading can still hang the main thread on Windows"},{"keywords":["meta"],"severity":"--","priority":"--","id":1689392,"op_sys":"Unspecified","component":"Performance: General","last_change_time":"2025-03-11T08:41:57Z","creation_time":"2021-01-28T16:03:57Z","summary":"[Meta] investigate performance issues on Reddit.","status":"NEW"},{"summary":"AudioContext power optimizations","status":"NEW","last_change_time":"2025-09-17T01:08:29Z","creation_time":"2022-05-25T16:56:04Z","component":"Web Audio","keywords":["perf:resource-use","reproducible"],"severity":"S3","priority":"P2","op_sys":"Unspecified","id":1771179},{"summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","status":"NEW","last_change_time":"2025-03-10T23:42:15Z","creation_time":"2022-08-31T21:19:22Z","component":"Performance","priority":"P2","keywords":["perf:resource-use","perf:responsiveness","reproducible"],"severity":"S2","id":1788530,"op_sys":"Unspecified"},{"component":"Graphics: WebRender","priority":"--","severity":"S3","keywords":["webcompat:platform-bug"],"id":1826576,"op_sys":"Android","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","status":"NEW","last_change_time":"2025-10-30T20:58:10Z","creation_time":"2023-04-05T14:45:37Z"},{"status":"NEW","summary":"Firefox regularly hangs for over half a second in SessionWriter.sys.mjs calling IOUtils.writeJSON serializing a massive JS object when saving tab state","creation_time":"2023-08-18T17:52:57Z","last_change_time":"2025-10-13T08:56:16Z","component":"Session Restore","id":1849393,"op_sys":"Unspecified","priority":"P3","keywords":["perf","perf:responsiveness"],"severity":"S3"},{"severity":"S2","keywords":[],"priority":"P2","id":1903530,"op_sys":"Unspecified","component":"Storage: Quota Manager","last_change_time":"2025-11-05T15:23:53Z","creation_time":"2024-06-19T11:50:31Z","summary":"Frequent long janks on Android on loading certain pages","status":"NEW"},{"last_change_time":"2025-03-20T03:11:36Z","creation_time":"2024-11-04T09:34:27Z","summary":"vizzy.io - 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bugzilla-data-low.json

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bugzilla-data-medium.json

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bugzilla-data-needinfo.json

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{"bugs":[{"last_change_time":"2025-07-14T12:37:19Z","op_sys":"Unspecified","priority":"P3","component":"General","id":1968418,"keywords":[],"summary":"Closing a long-running twitch tab hangs browser for minute(s) (GC in recvConduitClosed of Conduit)","creation_time":"2025-05-25T08:19:42Z","status":"NEW","severity":"S3"},{"status":"UNCONFIRMED","severity":"--","id":1940206,"keywords":[],"creation_time":"2025-01-07T05:08:26Z","summary":"Garbage collection is less efficient on macOS(ARM) than on Linux(x86)","priority":"--","component":"Performance: Memory","last_change_time":"2025-09-22T12:15:53Z","op_sys":"Unspecified"},{"severity":"--","status":"UNCONFIRMED","creation_time":"2025-04-13T07:52:04Z","summary":"Dual monitor (laptop / Monitor) browsing very slow refresh in second monitor","id":1960195,"keywords":[],"component":"Graphics","priority":"--","op_sys":"Windows 11","last_change_time":"2025-10-23T13:54:51Z"},{"op_sys":"Unspecified","last_change_time":"2025-11-06T15:23:47Z","component":"Performance: General","priority":"--","summary":"Firefox constantly freezes","creation_time":"2025-04-20T11:59:18Z","keywords":[],"id":1961523,"severity":"--","status":"UNCONFIRMED"},{"creation_time":"2025-05-01T21:23:59Z","summary":"Google search results in high CPU usage and spike in temps. Happens with most of the browsers but Firefox results in higher temps spikes and CPU usage","keywords":[],"id":1963933,"severity":"--","status":"UNCONFIRMED","op_sys":"Windows 11","last_change_time":"2025-05-26T16:36:04Z","component":"Performance: General","priority":"--"},{"status":"UNCONFIRMED","severity":"S3","keywords":[],"id":1964744,"creation_time":"2025-05-06T16:45:20Z","summary":"high cpu memory youtube","priority":"--","component":"Performance: Memory","last_change_time":"2025-06-09T15:38:11Z","op_sys":"Unspecified"},{"status":"UNCONFIRMED","severity":"--","keywords":[],"id":1977599,"summary":"Embedded video file playback hitching and freezing browser.","creation_time":"2025-07-16T12:32:39Z","priority":"--","component":"Graphics","last_change_time":"2025-10-23T13:55:27Z","op_sys":"Unspecified"},{"id":1981274,"keywords":[],"summary":"utter-disappointment-with-firefox-performance","creation_time":"2025-08-05T21:33:11Z","status":"UNCONFIRMED","severity":"--","last_change_time":"2025-09-02T11:45:29Z","op_sys":"Unspecified","priority":"--","component":"Performance: General"},{"keywords":[],"id":1982631,"summary":"Google Maps takes forever to load","creation_time":"2025-08-12T15:16:04Z","status":"UNCONFIRMED","severity":"--","last_change_time":"2025-09-02T11:34:35Z","op_sys":"Unspecified","priority":"--","component":"Performance: General"}]}
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{"bugs":[{"last_change_time":"2025-07-14T12:37:19Z","creation_time":"2025-05-25T08:19:42Z","summary":"Closing a long-running twitch tab hangs browser for minute(s) (GC in recvConduitClosed of Conduit)","status":"NEW","priority":"P3","keywords":[],"severity":"S3","op_sys":"Unspecified","id":1968418,"component":"General"},{"last_change_time":"2025-09-22T12:15:53Z","creation_time":"2025-01-07T05:08:26Z","summary":"Garbage collection is less efficient on macOS(ARM) than on Linux(x86)","status":"UNCONFIRMED","priority":"--","severity":"--","keywords":[],"op_sys":"Unspecified","id":1940206,"component":"Performance: Memory"},{"creation_time":"2025-04-13T07:52:04Z","last_change_time":"2025-10-23T13:54:51Z","status":"UNCONFIRMED","summary":"Dual monitor (laptop / Monitor) browsing very slow refresh in second monitor","id":1960195,"op_sys":"Windows 11","severity":"--","keywords":[],"priority":"--","component":"Graphics"},{"creation_time":"2025-04-20T11:59:18Z","last_change_time":"2025-11-06T15:23:47Z","status":"UNCONFIRMED","summary":"Firefox constantly freezes","op_sys":"Unspecified","id":1961523,"priority":"--","keywords":[],"severity":"--","component":"Performance: General"},{"component":"Performance: General","priority":"--","keywords":[],"severity":"--","id":1963933,"op_sys":"Windows 11","summary":"Google search results in high CPU usage and spike in temps. Happens with most of the browsers but Firefox results in higher temps spikes and CPU usage","status":"UNCONFIRMED","last_change_time":"2025-05-26T16:36:04Z","creation_time":"2025-05-01T21:23:59Z"},{"last_change_time":"2025-06-09T15:38:11Z","creation_time":"2025-05-06T16:45:20Z","summary":"high cpu memory youtube","status":"UNCONFIRMED","severity":"S3","keywords":[],"priority":"--","op_sys":"Unspecified","id":1964744,"component":"Performance: Memory"},{"component":"Graphics","op_sys":"Unspecified","id":1977599,"keywords":[],"severity":"--","priority":"--","status":"UNCONFIRMED","summary":"Embedded video file playback hitching and freezing browser.","creation_time":"2025-07-16T12:32:39Z","last_change_time":"2025-10-23T13:55:27Z"},{"last_change_time":"2025-09-02T11:45:29Z","creation_time":"2025-08-05T21:33:11Z","summary":"utter-disappointment-with-firefox-performance","status":"UNCONFIRMED","keywords":[],"severity":"--","priority":"--","op_sys":"Unspecified","id":1981274,"component":"Performance: General"},{"keywords":[],"severity":"--","priority":"--","op_sys":"Unspecified","id":1982631,"component":"Performance: General","last_change_time":"2025-09-02T11:34:35Z","creation_time":"2025-08-12T15:16:04Z","summary":"Google Maps takes forever to load","status":"UNCONFIRMED"}]}

bugzilla-data-regressions.json

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