bugzilla-data-high.json

{"bugs":[{"keywords":[],"severity":"--","last_change_time":"2026-03-07T06:21:30Z","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","op_sys":"All","creation_time":"2025-05-01T13:52:50Z","priority":"--","component":"Password Manager","status":"ASSIGNED","id":1963814},{"status":"NEW","id":1602842,"component":"Widget: Cocoa","priority":"P3","op_sys":"Unspecified","creation_time":"2019-12-10T17:22:25Z","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","keywords":["perf:responsiveness"],"last_change_time":"2025-07-01T19:28:26Z","severity":"S3"},{"id":1677509,"status":"NEW","component":"Panning and Zooming","priority":"--","op_sys":"Unspecified","creation_time":"2020-11-16T15:30:13Z","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process","last_change_time":"2025-05-28T19:20:30Z","severity":"S3","keywords":["perf:responsiveness"]},{"summary":"Lazy font loading can still hang the main thread on Windows","op_sys":"Windows","creation_time":"2021-01-26T19:14:50Z","last_change_time":"2026-02-28T12:23:08Z","severity":"S3","keywords":["perf:responsiveness"],"id":1688951,"status":"NEW","priority":"--","component":"Layout: Text and Fonts"},{"priority":"--","component":"Performance: General","id":1689392,"status":"NEW","severity":"--","last_change_time":"2025-03-11T08:41:57Z","keywords":["meta"],"summary":"[Meta] investigate performance issues on Reddit.","creation_time":"2021-01-28T16:03:57Z","op_sys":"Unspecified"},{"component":"Web Audio","priority":"P2","status":"NEW","id":1771179,"keywords":["perf:resource-use","reproducible"],"severity":"S3","last_change_time":"2025-11-26T06:43:39Z","op_sys":"Unspecified","creation_time":"2022-05-25T16:56:04Z","summary":"AudioContext power optimizations"},{"id":1788530,"status":"NEW","priority":"P2","component":"Performance","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","op_sys":"Unspecified","creation_time":"2022-08-31T21:19:22Z","severity":"S2","last_change_time":"2025-03-10T23:42:15Z","keywords":["perf:resource-use","perf:responsiveness","reproducible"]},{"last_change_time":"2025-10-30T20:58:10Z","severity":"S3","keywords":["webcompat:platform-bug"],"summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","op_sys":"Android","creation_time":"2023-04-05T14:45:37Z","priority":"--","component":"Graphics: WebRender","id":1826576,"status":"NEW"},{"id":1849393,"status":"NEW","component":"Session Restore","priority":"P3","op_sys":"Unspecified","creation_time":"2023-08-18T17:52:57Z","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","severity":"S3","last_change_time":"2026-03-10T16:53:28Z","keywords":["perf","perf:responsiveness"]},{"summary":"Frequent long janks on Android on loading certain pages","creation_time":"2024-06-19T11:50:31Z","op_sys":"Unspecified","severity":"S2","last_change_time":"2026-04-15T14:32:25Z","keywords":[],"id":1903530,"status":"NEW","priority":"P2","component":"Storage: Quota Manager"},{"status":"NEW","id":1928948,"component":"Site Reports","priority":"P2","op_sys":"Windows 10","creation_time":"2024-11-04T09:34:27Z","summary":"vizzy.io - The browser is slowed down and eventually stops responding","keywords":["webcompat:needs-contact","webcompat:site-report"],"severity":"S2","last_change_time":"2025-03-20T03:11:36Z"},{"priority":"P1","component":"JavaScript Engine","status":"NEW","id":1963578,"keywords":[],"last_change_time":"2026-02-25T19:39:41Z","severity":"S2","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","creation_time":"2025-04-30T12:23:32Z","op_sys":"Unspecified"},{"status":"NEW","id":1971873,"component":"Performance: Navigation","priority":"P3","op_sys":"Android","creation_time":"2025-06-12T19:54:27Z","summary":"m.facebook.com live site loads 100-200ms slower in Fenix than Chrome","keywords":["perf:pageload"],"last_change_time":"2025-07-04T18:23:19Z","severity":"S3"},{"component":"Graphics: WebRender","priority":"P2","status":"NEW","id":1988762,"keywords":[],"severity":"S2","last_change_time":"2026-03-23T19:01:32Z","creation_time":"2025-09-16T14:51:59Z","op_sys":"Android","summary":"Slow scrolling performance on particular sites (mastodon)"},{"priority":"P3","component":"Performance Engineering","id":1995805,"status":"NEW","severity":"S2","last_change_time":"2026-04-16T13:50:00Z","keywords":[],"summary":"Fenix cold start applink navigation performance ~800-1100ms slower than warm, hot scenarios, p75 (fcp, lcp)","op_sys":"Unspecified","creation_time":"2025-10-22T15:48:12Z"},{"summary":"Jank and freezing on snowplowmap.a2gov.org","creation_time":"2026-01-27T17:26:37Z","op_sys":"Unspecified","keywords":["webcompat:needs-sitepatch","webcompat:platform-bug","webcompat:site-report"],"severity":"S3","last_change_time":"2026-03-31T12:19:33Z","status":"NEW","id":2012760,"priority":"P3","component":"Site Reports"},{"keywords":["perf:responsiveness","perf:startup","reproducible"],"severity":"S3","last_change_time":"2026-04-24T21:54:07Z","op_sys":"Unspecified","creation_time":"2019-05-10T14:52:25Z","summary":"ContentParent::KillHard janks the main thread","component":"Crash Reporting","priority":"--","status":"REOPENED","id":1550754}]}