bugzilla-data-high.json

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