bugzilla-data-high.json

{"bugs":[{"component":"Password Manager","creation_time":"2025-05-01T13:52:50Z","id":1963814,"keywords":[],"last_change_time":"2026-03-07T06:21:30Z","op_sys":"All","priority":"--","severity":"--","status":"ASSIGNED","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)"},{"component":"JavaScript Engine","creation_time":"2018-09-04T14:10:08Z","id":1488435,"keywords":[],"last_change_time":"2026-09-04T12:38:11Z","op_sys":"macOS","priority":"P3","severity":"N\/A","status":"NEW","summary":"Significant key input delay when typing on large Google Docs"},{"component":"Widget: Cocoa","creation_time":"2019-12-10T17:22:25Z","id":1602842,"keywords":["perf:responsiveness"],"last_change_time":"2025-07-01T19:28:26Z","op_sys":"Unspecified","priority":"P3","severity":"S3","status":"NEW","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays"},{"component":"Panning and Zooming","creation_time":"2020-11-16T15:30:13Z","id":1677509,"keywords":["perf:responsiveness"],"last_change_time":"2025-05-28T19:20:30Z","op_sys":"Unspecified","priority":"--","severity":"S3","status":"NEW","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process"},{"component":"Layout: Text and Fonts","creation_time":"2021-01-26T19:14:50Z","id":1688951,"keywords":["perf:responsiveness"],"last_change_time":"2026-07-27T17:25:32Z","op_sys":"Windows","priority":"--","severity":"S3","status":"NEW","summary":"Lazy font loading can still hang the main thread on Windows"},{"component":"Web Audio","creation_time":"2022-05-25T16:56:04Z","id":1771179,"keywords":["perf:resource-use","reproducible"],"last_change_time":"2026-11-09T08:39:10Z","op_sys":"Unspecified","priority":"P2","severity":"S3","status":"NEW","summary":"AudioContext power optimizations"},{"component":"Performance","creation_time":"2022-08-31T21:19:22Z","id":1788530,"keywords":["perf:resource-use","perf:responsiveness","reproducible"],"last_change_time":"2025-03-10T23:42:15Z","op_sys":"Unspecified","priority":"P2","severity":"S2","status":"NEW","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab"},{"component":"Graphics: WebRender","creation_time":"2023-04-05T14:45:37Z","id":1826576,"keywords":["webcompat:platform-bug"],"last_change_time":"2025-10-30T20:58:10Z","op_sys":"Android","priority":"--","severity":"S3","status":"NEW","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia"},{"component":"Session Restore","creation_time":"2023-08-18T17:52:57Z","id":1849393,"keywords":["perf","perf:responsiveness"],"last_change_time":"2026-10-15T20:17:50Z","op_sys":"Unspecified","priority":"P3","severity":"S3","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"},{"component":"Storage: Quota Manager","creation_time":"2024-06-19T11:50:31Z","id":1903530,"keywords":[],"last_change_time":"2026-08-13T22:17:37Z","op_sys":"Unspecified","priority":"P2","severity":"S2","status":"NEW","summary":"Frequent long janks on Android on loading certain pages"},{"component":"Site Reports","creation_time":"2024-11-04T09:34:27Z","id":1928948,"keywords":["webcompat:needs-contact","webcompat:site-report"],"last_change_time":"2026-08-27T21:48:12Z","op_sys":"Windows 10","priority":"P2","severity":"S2","status":"NEW","summary":"vizzy.io - The browser is slowed down and eventually stops responding"},{"component":"JavaScript Engine","creation_time":"2025-04-30T12:23:32Z","id":1963578,"keywords":[],"last_change_time":"2026-10-25T20:34:50Z","op_sys":"Unspecified","priority":"P1","severity":"S2","status":"NEW","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\""},{"component":"Graphics: WebRender","creation_time":"2025-09-16T14:51:59Z","id":1988762,"keywords":[],"last_change_time":"2026-03-23T19:01:32Z","op_sys":"Android","priority":"P2","severity":"S2","status":"NEW","summary":"Slow scrolling performance on particular sites (mastodon)"},{"component":"Performance Engineering","creation_time":"2025-10-22T15:48:12Z","id":1995805,"keywords":["perf:startup"],"last_change_time":"2026-08-24T17:24:50Z","op_sys":"Unspecified","priority":"P3","severity":"S2","status":"NEW","summary":"Fenix cold start applink navigation performance ~800-1100ms slower than warm, hot scenarios, p75 (fcp, lcp)"},{"component":"Site Reports","creation_time":"2026-01-27T17:26:37Z","id":2012760,"keywords":["leave-open","webcompat:platform-bug","webcompat:site-report","webcompat:sitepatch-applied"],"last_change_time":"2026-05-13T14:31:19Z","op_sys":"Unspecified","priority":"P3","severity":"S3","status":"NEW","summary":"Jank and freezing on snowplowmap.a2gov.org"},{"component":"Crash Reporting","creation_time":"2019-05-10T14:52:25Z","id":1550754,"keywords":["perf:responsiveness","perf:startup","reproducible"],"last_change_time":"2026-04-28T09:36:23Z","op_sys":"Unspecified","priority":"--","severity":"S3","status":"REOPENED","summary":"ContentParent::KillHard janks the main thread"}]}