bugzilla-data-high.json

{"bugs":[{"status":"ASSIGNED","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","severity":"--","keywords":[],"id":1963814,"op_sys":"All","last_change_time":"2026-03-07T06:21:30Z","component":"Password Manager","priority":"--","creation_time":"2025-05-01T13:52:50Z"},{"status":"NEW","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","id":1602842,"op_sys":"Unspecified","last_change_time":"2025-07-01T19:28:26Z","keywords":["perf:responsiveness"],"severity":"S3","creation_time":"2019-12-10T17:22:25Z","component":"Widget: Cocoa","priority":"P3"},{"severity":"S3","keywords":["perf:responsiveness"],"last_change_time":"2025-05-28T19:20:30Z","op_sys":"Unspecified","id":1677509,"priority":"--","component":"Panning and Zooming","creation_time":"2020-11-16T15:30:13Z","status":"NEW","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process"},{"summary":"Lazy font loading can still hang the main thread on Windows","status":"NEW","creation_time":"2021-01-26T19:14:50Z","component":"Layout: Text and Fonts","priority":"--","id":1688951,"last_change_time":"2026-02-28T12:23:08Z","op_sys":"Windows","severity":"S3","keywords":["perf:responsiveness"]},{"id":1689392,"op_sys":"Unspecified","last_change_time":"2025-03-11T08:41:57Z","severity":"--","keywords":["meta"],"creation_time":"2021-01-28T16:03:57Z","component":"Performance: General","priority":"--","status":"NEW","summary":"[Meta] investigate performance issues on Reddit."},{"last_change_time":"2025-11-26T06:43:39Z","op_sys":"Unspecified","id":1771179,"keywords":["perf:resource-use","reproducible"],"severity":"S3","creation_time":"2022-05-25T16:56:04Z","priority":"P2","component":"Web Audio","status":"NEW","summary":"AudioContext power optimizations"},{"creation_time":"2022-08-31T21:19:22Z","priority":"P2","component":"Performance","op_sys":"Unspecified","last_change_time":"2025-03-10T23:42:15Z","id":1788530,"keywords":["perf:resource-use","perf:responsiveness","reproducible"],"severity":"S2","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","status":"NEW"},{"keywords":["webcompat:platform-bug"],"severity":"S3","last_change_time":"2025-10-30T20:58:10Z","op_sys":"Android","id":1826576,"priority":"--","component":"Graphics: WebRender","creation_time":"2023-04-05T14:45:37Z","status":"NEW","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia"},{"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","status":"NEW","component":"Session Restore","priority":"P3","creation_time":"2023-08-18T17:52:57Z","severity":"S3","keywords":["perf","perf:responsiveness"],"id":1849393,"last_change_time":"2026-03-10T16:53:28Z","op_sys":"Unspecified"},{"summary":"Frequent long janks on Android on loading certain pages","status":"NEW","creation_time":"2024-06-19T11:50:31Z","component":"Storage: Quota Manager","priority":"P2","id":1903530,"last_change_time":"2026-04-15T14:32:25Z","op_sys":"Unspecified","keywords":[],"severity":"S2"},{"summary":"vizzy.io - The browser is slowed down and eventually stops responding","status":"NEW","component":"Site Reports","priority":"P2","creation_time":"2024-11-04T09:34:27Z","severity":"S2","keywords":["webcompat:needs-contact","webcompat:site-report"],"id":1928948,"last_change_time":"2025-03-20T03:11:36Z","op_sys":"Windows 10"},{"status":"NEW","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","keywords":[],"severity":"S2","op_sys":"Unspecified","last_change_time":"2026-02-25T19:39:41Z","id":1963578,"priority":"P1","component":"JavaScript Engine","creation_time":"2025-04-30T12:23:32Z"},{"severity":"S3","keywords":["perf:pageload"],"op_sys":"Android","last_change_time":"2025-07-04T18:23:19Z","id":1971873,"priority":"P3","component":"Performance: Navigation","creation_time":"2025-06-12T19:54:27Z","status":"NEW","summary":"m.facebook.com live site loads 100-200ms slower in Fenix than Chrome"},{"id":1988762,"last_change_time":"2026-03-23T19:01:32Z","op_sys":"Android","severity":"S2","keywords":[],"creation_time":"2025-09-16T14:51:59Z","component":"Graphics: WebRender","priority":"P2","status":"NEW","summary":"Slow scrolling performance on particular sites (mastodon)"},{"summary":"Fenix cold start applink navigation performance ~800-1100ms slower than warm, hot scenarios, p75 (fcp, lcp)","status":"NEW","creation_time":"2025-10-22T15:48:12Z","component":"Performance Engineering","priority":"P3","id":1995805,"op_sys":"Unspecified","last_change_time":"2026-04-29T17:39:53Z","keywords":[],"severity":"S2"},{"status":"NEW","summary":"Jank and freezing on snowplowmap.a2gov.org","id":2012760,"op_sys":"Unspecified","last_change_time":"2026-03-31T12:19:33Z","severity":"S3","keywords":["webcompat:needs-sitepatch","webcompat:platform-bug","webcompat:site-report"],"creation_time":"2026-01-27T17:26:37Z","component":"Site Reports","priority":"P3"},{"last_change_time":"2026-04-30T17:32:58Z","op_sys":"Windows 10","id":2026885,"severity":"S2","keywords":["webcompat:needs-diagnosis","webcompat:site-report"],"creation_time":"2026-03-27T08:26:43Z","priority":"--","component":"JavaScript: WebAssembly","status":"NEW","summary":"ome.tv - Page freezes shortly after matching with users"},{"summary":"ContentParent::KillHard janks the main thread","status":"REOPENED","component":"Crash Reporting","priority":"--","creation_time":"2019-05-10T14:52:25Z","keywords":["perf:responsiveness","perf:startup","reproducible"],"severity":"S3","id":1550754,"op_sys":"Unspecified","last_change_time":"2026-04-28T09:36:23Z"}]}