bugzilla-data-regressions.json

{"bugs":[{"summary":"5.4 - 6.45% raptor-webaudio-firefox (linux64-shippable, linux64-shippable-qr) regression on push c170f9cb5e2c4d80e972f33d3134534ad3de313d (Tue November 17 2020)","status":"NEW","last_change_time":"2023-12-21T12:51:03Z","component":"Toolchains","severity":"S3","creation_time":"2020-11-19T07:06:09Z","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1678235,"priority":"--"},{"component":"Session Restore","last_change_time":"2023-12-21T12:24:39Z","summary":"4.84 - 8.77% startup_about_home_paint_realworld_webextensions (windows10-64-shippable-qr) regression on push 6ca8cea4044a74c89e0137660c243bd542714abc (Mon November 16 2020)","status":"ASSIGNED","severity":"S3","creation_time":"2020-11-20T07:38:38Z","priority":"--","id":1678543,"keywords":["perf","perf-alert","regression","talos-regression"],"op_sys":"Unspecified"},{"creation_time":"2021-02-12T09:37:45Z","severity":"S3","keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1692426,"last_change_time":"2024-12-17T04:48:35Z","status":"NEW","summary":"11.15 - 11.5% amazon-search LastVisualChange (android-hw-g5-7-0-arm7-api-16-shippable) regression on push bd2b705457a3a72b97d343eb1ffa29a3bd9a7ecd (Tue February 9 2021)","component":"Panning and Zooming"},{"op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"id":1701866,"priority":"--","creation_time":"2021-03-30T06:46:34Z","severity":"S3","summary":"28.49 - 4.03% tsvg_static / tabswitch + 5 more (Linux, OSX, Windows) regression on Fri March 26 2021","status":"NEW","last_change_time":"2023-12-21T12:48:01Z","component":"Layout"},{"severity":"S3","creation_time":"2021-07-26T07:36:40Z","op_sys":"All","keywords":["perf","perf-alert","regression"],"id":1722266,"priority":"--","summary":"9.77 - 2.2% espn fcp / imdb PerceptualSpeedIndex + 113 more (Android) regression on Wed July 21 2021","status":"NEW","last_change_time":"2024-07-25T18:00:13Z","component":"General"},{"component":"Graphics: ImageLib","last_change_time":"2023-06-19T22:21:29Z","status":"NEW","summary":"8.2% ebay-kleinanzeigen LastVisualChange (Android) regression on Fri November 5 2021","creation_time":"2021-11-09T09:00:28Z","severity":"S3","priority":"--","id":1740206,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified"},{"last_change_time":"2025-06-09T14:37:01Z","summary":"[fission] Page loads flickers and shows visible redraws (due to too-early paint unsuppression?)","status":"REOPENED","component":"Layout","severity":"S3","creation_time":"2021-11-10T13:41:32Z","keywords":["perf-alert","regression"],"op_sys":"All","priority":"P2","id":1740499},{"last_change_time":"2024-02-27T19:11:26Z","status":"NEW","summary":"29.82 - 2.96% damp simple.inspector.reload.DAMP / damp complicated.jsdebugger.open.DAMP + 30 more (Linux, OSX, Windows) regression on Thu November 25 2021","component":"General","keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1743359,"severity":"S3","creation_time":"2021-11-29T08:54:56Z"},{"keywords":["perf","perf-alert","regression","talos-regression"],"op_sys":"Unspecified","priority":"--","id":1744777,"severity":"S3","creation_time":"2021-12-07T15:43:56Z","last_change_time":"2024-08-27T06:59:02Z","status":"NEW","summary":"70.01 - 48% glvideo Mean tick time across 100 ticks:  / glvideo Mean tick time across 100 ticks:  + 3 more (Linux) regression on Fri December 3 2021","component":"Audio/Video: Playback"},{"keywords":["perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1747897,"severity":"S3","creation_time":"2021-12-29T15:25:58Z","last_change_time":"2023-12-21T12:39:57Z","summary":"12.91% build times (Android) regression on Sat December 18 2021","status":"NEW","component":"General"},{"status":"NEW","summary":"26.88 - 22.51% reddit-billgates-post-1.posts ContentfulSpeedIndex / reddit-billgates-post-1.posts ContentfulSpeedIndex + 1 more (Linux) regression on Fri April 8 2022","last_change_time":"2025-03-11T08:55:44Z","component":"Widget: Gtk","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1764502,"priority":"--","severity":"S3","creation_time":"2022-04-13T06:57:35Z"},{"priority":"--","id":1771139,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","creation_time":"2022-05-25T11:50:46Z","severity":"S4","component":"Graphics: Canvas2D","last_change_time":"2023-12-21T12:37:20Z","summary":"6.79 - 3.07% google-docs-canvas LastVisualChange / google-docs-canvas FirstVisualChange + 1 more (Linux) regression on Fri May 20 2022","status":"NEW"},{"op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"id":1800133,"priority":"P2","creation_time":"2022-11-10T18:58:44Z","severity":"S3","status":"REOPENED","summary":"16.22 - 12.09% displaylist_mutate / displaylist_mutate + 4 more (Linux, OSX, Windows) regression on Sun November 6 2022","last_change_time":"2024-04-03T02:40:30Z","component":"Graphics: WebRender"},{"component":"Graphics: WebGPU","summary":"12.07 - 10.81% perf_reftest_singletons bloom-basic-2.html / perf_reftest_singletons bloom-basic-2.html + 1 more (OSX) regression on Thu December 22 2022","status":"NEW","last_change_time":"2024-03-21T20:20:06Z","id":1807935,"priority":"P2","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"severity":"--","creation_time":"2022-12-29T15:37:47Z"},{"last_change_time":"2023-06-18T00:31:00Z","status":"NEW","summary":"4.45% perf_reftest_singletons bidi-resolution-1.html (Linux) regression on Wed March 15 2023","component":"Graphics: Canvas2D","keywords":["perf","perf-alert","regression","talos-regression"],"op_sys":"Linux","priority":"--","id":1825403,"creation_time":"2023-03-29T19:13:51Z","severity":"S3"},{"id":1827167,"priority":"P2","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"creation_time":"2023-04-10T06:48:08Z","severity":"S3","component":"Search","summary":"1.03 - 1.02% Base Content JS / Base Content JS + 2 more (Linux, OSX, Windows) regression on Mon April 3 2023","status":"NEW","last_change_time":"2023-05-23T14:54:15Z"},{"component":"JavaScript Engine","status":"ASSIGNED","summary":"2.02% Base Content Heap Unclassified (Windows) regression on Mon May 8 2023","last_change_time":"2023-08-01T16:45:12Z","id":1833078,"priority":"P3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"severity":"S3","creation_time":"2023-05-15T06:47:03Z"},{"component":"CSS Parsing and Computation","last_change_time":"2023-07-11T02:35:25Z","summary":"4.81 - 4.27% stylebench / stylebench (Windows) regression on Thu June 8 2023","status":"NEW","severity":"S3","creation_time":"2023-06-21T12:03:19Z","priority":"--","id":1839620,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified"},{"priority":"P1","id":1842437,"keywords":["perf-alert","regression","webcompat:contact-ready","webcompat:site-report","webcompat:sitepatch-applied"],"op_sys":"Unspecified","creation_time":"2023-07-09T11:32:20Z","severity":"S2","component":"Site Reports","last_change_time":"2026-03-02T15:47:18Z","status":"REOPENED","summary":"Youtube back navigation has started to fail again in new tabs."},{"last_change_time":"2023-07-18T23:54:10Z","status":"NEW","summary":"0.11% installer size (OSX) regression on Wed July 5 2023","component":"Gecko Profiler","keywords":["perf-alert","regression"],"op_sys":"Unspecified","priority":"P3","id":1842590,"creation_time":"2023-07-10T12:29:54Z","severity":"S3"},{"creation_time":"2023-07-11T09:05:48Z","severity":"S3","keywords":["perf-alert","regression"],"op_sys":"Unspecified","priority":"P3","id":1842759,"last_change_time":"2023-08-04T01:53:30Z","status":"NEW","summary":"2.7 - 2.67% compiler_metrics num_static_constructors / compiler_metrics num_static_constructors + 2 more (Linux, Windows) regression on Wed July 5 2023","component":"General"},{"last_change_time":"2023-11-23T10:58:47Z","status":"NEW","summary":"6.33% google-maps loadtime (Android) regression on Sun July 9 2023","component":"CSS Parsing and Computation","severity":"S3","creation_time":"2023-07-19T07:29:21Z","keywords":["perf","perf-alert","regression"],"op_sys":"Android","priority":"P3","id":1844274},{"status":"NEW","summary":"32.47 - 8.33% twitch SpeedIndex / reddit ContentfulSpeedIndex + 5 more (Linux, OSX, Windows) regression on Thu August 3 2023","last_change_time":"2025-03-11T08:50:41Z","component":"Translations","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1848291,"priority":"--","creation_time":"2023-08-11T08:18:12Z","severity":"S3"},{"component":"Internationalization","last_change_time":"2023-12-12T08:20:25Z","summary":"10.43 - 5.31% wikipedia loadtime / wikipedia fcp + 3 more (OSX) regression on Mon August 7 2023","status":"NEW","priority":"P1","id":1848354,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","severity":"S3","creation_time":"2023-08-11T14:21:07Z"},{"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1849155,"creation_time":"2023-08-17T13:50:50Z","severity":"S3","last_change_time":"2023-09-07T15:29:55Z","summary":"2.04 - 1.95% google-mail FirstVisualChange / google-mail FirstVisualChange (Windows) regression on Tue August 8 2023","status":"NEW","component":"Translations"},{"priority":"--","id":1853641,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","severity":"S3","creation_time":"2023-09-18T08:54:45Z","component":"Inspector: Rules","last_change_time":"2023-09-19T15:35:59Z","summary":"Investigate unexpected DAMP tests improvement","status":"ASSIGNED"},{"id":1853858,"priority":"--","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"severity":"--","creation_time":"2023-09-19T07:32:00Z","component":"Widget: Gtk","status":"NEW","summary":"9.16 - 3.75% facebook LastVisualChange / yahoo-mail SpeedIndex + 1 more (Linux) regression on Thu September 14 2023","last_change_time":"2023-12-21T12:05:47Z"},{"last_change_time":"2023-09-20T22:28:44Z","status":"NEW","summary":"3.38% yahoo-mail SpeedIndex (Linux) regression on Thu September 14 2023","component":"Widget: Gtk","creation_time":"2023-09-20T06:58:57Z","severity":"--","keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1854057},{"component":"CSS Parsing and Computation","summary":"0.27% installer size (OSX) regression on Fri September 15 2023","status":"NEW","last_change_time":"2023-11-28T20:55:19Z","id":1854401,"priority":"--","op_sys":"Unspecified","keywords":["perf-alert","regression"],"severity":"S3","creation_time":"2023-09-21T14:51:44Z"},{"component":"Performance","summary":"Beta 119 Performance changes when we unset EARLY_BETA_OR_EARLIER","status":"NEW","last_change_time":"2023-12-27T18:55:54Z","id":1858604,"priority":"P5","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"severity":"S3","creation_time":"2023-10-12T07:04:43Z"},{"component":"Performance","status":"NEW","summary":"17.63 - 8.9% assorted-dom / assorted-dom (Linux) regression on Fri October 13 2023","last_change_time":"2025-05-05T02:09:30Z","creation_time":"2023-10-19T20:23:19Z","severity":"S3","id":1860168,"priority":"P2","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"]},{"component":"Performance","last_change_time":"2023-12-27T18:55:54Z","summary":"Beta 120 Performance changes when we unset EARLY_BETA_OR_EARLIER","status":"NEW","creation_time":"2023-10-31T14:17:03Z","severity":"S3","priority":"P5","id":1862221,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified"},{"creation_time":"2023-11-21T14:07:09Z","severity":"S4","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1865831,"priority":"--","status":"NEW","summary":"11.66 - 2.62% facebook-cristiano ContentfulSpeedIndex / paypal loadtime + 2 more (Android, Windows) regression on Tue November 14 2023","last_change_time":"2023-12-18T13:18:10Z","component":"DOM: Navigation"},{"priority":"P3","id":1866783,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","severity":"S4","creation_time":"2023-11-27T13:19:35Z","component":"DOM: Core & HTML","last_change_time":"2025-03-20T19:32:49Z","summary":"3.22 - 2.04% Base Content Heap Unclassified / Base Content Heap Unclassified + 1 more (Linux, Windows) regression on Tue November 21 2023","status":"NEW"},{"creation_time":"2023-12-01T21:17:36Z","severity":"S3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1867868,"priority":"P5","status":"NEW","summary":"Beta 121 Performance changes when we unset EARLY_BETA_OR_EARLIER","last_change_time":"2024-01-16T10:43:21Z","component":"Performance"},{"id":1869244,"priority":"P3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"severity":"S3","creation_time":"2023-12-11T09:39:23Z","component":"Console","summary":"17.93 - 12.89% damp console.autocomplete.longInput / damp console.autocomplete.longInput + 8 more (Linux, OSX, Windows) regression on Tue November 14 2023","status":"NEW","last_change_time":"2024-01-09T13:28:05Z"},{"last_change_time":"2024-02-06T16:33:40Z","status":"NEW","summary":"1.94 - 1.83% compiler_metrics num_static_constructors / compiler_metrics num_static_constructors (Windows) regression on Fri December 8 2023","component":"Audio/Video","creation_time":"2023-12-14T16:17:57Z","severity":"S3","keywords":["perf-alert","regression"],"op_sys":"Unspecified","priority":"P3","id":1870074},{"component":"Performance: General","last_change_time":"2024-03-14T19:23:27Z","summary":"30 - 6.86% perf_reftest_singletons getElementById-1.html / perf_reftest_singletons attr-selector-1.html + 3 more (Linux) regression on Fri December 8 2023","status":"NEW","priority":"P3","id":1870279,"keywords":["perf","perf-alert","regression","talos-regression"],"op_sys":"Unspecified","creation_time":"2023-12-15T15:13:33Z","severity":"S4"},{"severity":"S3","creation_time":"2023-12-19T16:16:00Z","id":1870869,"priority":"P2","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"component":"Graphics: Canvas2D","summary":"13.66 - 6.8% canvas2dvideo Mean tick time across 100 ticks:  / canvas2dvideo Mean tick time across 100 ticks:  + 1 more (Windows) regression on Thu December 7 2023","status":"NEW","last_change_time":"2024-01-19T16:06:37Z"},{"last_change_time":"2024-02-07T14:42:17Z","status":"NEW","summary":"8.16 - 3.36% compiler_metrics num_static_constructors / compiler_metrics num_static_constructors + 2 more (Linux, OSX) regression on Tue December 19 2023","component":"Audio/Video","creation_time":"2023-12-27T14:24:08Z","severity":"S4","keywords":["perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1872152},{"op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1872172,"priority":"P5","creation_time":"2023-12-27T18:55:54Z","severity":"S3","summary":"Beta 122 Performance changes when we unset EARLY_BETA_OR_EARLIER","status":"NEW","last_change_time":"2026-02-12T13:29:52Z","component":"Performance"},{"component":"Inspector: Rules","status":"NEW","summary":"3.55 - 2.25% damp console.typing / damp console.autocomplete.longInput + 3 more (Windows) regression on Thu January 11 2024","last_change_time":"2024-01-16T16:47:02Z","id":1874648,"priority":"P3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"severity":"S3","creation_time":"2024-01-15T08:09:32Z"},{"severity":"S3","creation_time":"2024-01-19T13:05:49Z","id":1875468,"priority":"P3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"component":"Debugger","status":"NEW","summary":"17.06 - 4.16% damp custom.styleeditor.close.DAMP / damp custom.styleeditor.open.DAMP + 9 more (Linux, Windows) regression on Mon January 15 2024","last_change_time":"2024-05-20T14:59:31Z"},{"severity":"S3","creation_time":"2024-01-19T13:22:12Z","id":1875471,"priority":"P2","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"component":"Debugger","status":"NEW","summary":"39.34 - 4.63% damp custom.pretty-print.jsdebugger.reload.DAMP / damp server.protocoljs.DAMP + 5 more (Linux, Windows) regression on Tue January 16 2024","last_change_time":"2024-03-05T16:35:21Z"},{"component":"Inspector: Rules","last_change_time":"2024-04-15T17:25:45Z","summary":"23.2 - 2.91% damp custom.inspector.collapseall.manychildren / damp custom.inspector.close.DAMP + 9 more (Linux, OSX, Windows) regression on Tue January 30 2024","status":"NEW","priority":"P2","id":1878614,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","creation_time":"2024-02-05T09:14:03Z","severity":"S3"},{"priority":"P2","id":1879653,"keywords":["perf-alert","regression"],"op_sys":"Unspecified","creation_time":"2024-02-09T21:18:54Z","severity":"S3","component":"Source Editor","last_change_time":"2024-02-14T10:36:26Z","status":"NEW","summary":"0.21% installer size (OSX) regression on Thu February 8 2024"},{"creation_time":"2024-03-04T08:37:03Z","severity":"--","priority":"--","id":1883308,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","component":"Widget: Gtk","last_change_time":"2024-04-01T16:23:26Z","summary":"28.5 - 8.25% damp console.typing / damp console.autocomplete + 2 more (Linux) regression on Wed February 28 2024","status":"NEW"},{"severity":"S3","creation_time":"2024-03-21T15:00:54Z","id":1886780,"priority":"--","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"component":"CSS Parsing and Computation","summary":"5.61 - 5.19% perf_reftest_singletons many-custom-props.html / perf_reftest_singletons many-custom-props.html (OSX) regression on Mon March 11 2024","status":"NEW","last_change_time":"2024-10-22T21:10:57Z"},{"creation_time":"2024-04-09T15:30:04Z","severity":"S4","keywords":["perf","perf-alert","regression","talos-regression"],"op_sys":"Unspecified","priority":"P5","id":1890573,"last_change_time":"2024-07-11T12:36:06Z","summary":"3.47% twinopen ext+twinopen:twinopen.html (OSX) regression on Sat March 30 2024","status":"NEW","component":"Widget: Cocoa"},{"component":"Debugger","last_change_time":"2024-05-06T09:56:54Z","summary":"19.88% damp custom.jsdebugger.preview.DAMP (Windows) regression on Thu April 4 2024","status":"NEW","priority":"P3","id":1892244,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","severity":"S3","creation_time":"2024-04-18T14:19:28Z"},{"summary":"6.16 - 6.12% compiler_metrics num_static_constructors / compiler_metrics num_static_constructors (Windows) regression on Thu April 25 2024","status":"NEW","last_change_time":"2024-05-09T10:29:38Z","component":"Audio/Video","creation_time":"2024-04-30T16:21:41Z","severity":"S4","op_sys":"Unspecified","keywords":["perf-alert","regression"],"id":1894281,"priority":"P5"},{"op_sys":"Unspecified","keywords":["perf-alert","regression"],"id":1894283,"priority":"--","severity":"S3","creation_time":"2024-04-30T16:23:16Z","summary":"1.94 - 1.92% compiler_metrics num_static_constructors / compiler_metrics num_static_constructors (Windows) regression on Mon April 29 2024","status":"NEW","last_change_time":"2024-05-09T11:16:28Z","component":"Audio/Video"},{"component":"CSS Transitions and Animations","last_change_time":"2024-07-18T07:39:16Z","status":"NEW","summary":"41.52 - 20.11% google-maps LastVisualChange / google-maps LastVisualChange (Android) regression on Wed April 17 2024","priority":"--","id":1894368,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","creation_time":"2024-04-30T21:33:07Z","severity":"S4"},{"creation_time":"2024-05-14T18:57:56Z","severity":"S3","priority":"--","id":1896729,"keywords":["perf","perf-alert","regression","talos-regression"],"op_sys":"Unspecified","component":"String","last_change_time":"2024-06-06T18:58:57Z","status":"NEW","summary":"15.35 - 9.97% perf_reftest_singletons external-string-pass.html / perf_reftest_singletons external-string-pass.html (OSX) regression on Thu May 9 2024"},{"component":"Session Restore","last_change_time":"2024-06-04T15:41:53Z","status":"NEW","summary":"5.78 - 2.23% outlook ContentfulSpeedIndex / outlook SpeedIndex + 2 more (Linux, Windows) regression on Tue May 7 2024","priority":"--","id":1897076,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","creation_time":"2024-05-16T07:30:13Z","severity":"S3"},{"component":"Performance","summary":"1.36 - 1.36% installer size / installer size (OSX) regression on Mon May 13 2024","status":"NEW","last_change_time":"2024-12-11T07:57:37Z","id":1898148,"priority":"P5","op_sys":"Unspecified","keywords":["perf-alert","regression"],"severity":"S4","creation_time":"2024-05-22T06:57:11Z"},{"op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"id":1903756,"priority":"P5","creation_time":"2024-06-20T10:59:29Z","severity":"S4","status":"NEW","summary":"28.85 - 10.25% tsvgx / tsvgx + 4 more (Linux, OSX, Windows) regression on Mon June 10 2024","last_change_time":"2024-08-22T17:43:24Z","component":"Talos"},{"creation_time":"2024-07-04T16:04:57Z","severity":"S3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1906325,"priority":"--","summary":"4.28 - 2.3% google-slides LastVisualChange / google-slides LastVisualChange + 5 more (OSX, Windows) regression on Tue June 25 2024","status":"NEW","last_change_time":"2024-09-21T04:41:04Z","component":"Graphics: WebRender"},{"component":"Tabbed Browser","status":"NEW","summary":"3.04 - 2.06% tart / tart + 2 more (OSX, Windows) regression on Wed June 26 2024","last_change_time":"2024-08-23T21:22:37Z","id":1906353,"priority":"P3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"creation_time":"2024-07-04T18:41:02Z","severity":"S4"},{"creation_time":"2024-07-22T21:11:05Z","severity":"S4","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"id":1909338,"priority":"P2","summary":"2.15 - 1.65% tart / tart (Windows) regression on Tue July 9 2024","status":"NEW","last_change_time":"2024-09-12T16:56:08Z","component":"Theme"},{"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1909836,"severity":"S3","creation_time":"2024-07-25T09:44:13Z","last_change_time":"2025-03-11T08:51:43Z","status":"NEW","summary":"11.17 - 2.96% reddit SpeedIndex / reddit loadtime + 2 more (Linux, OSX, Windows) regression on Sat July 20 2024","component":"Layout"},{"keywords":["perf-alert","regression"],"op_sys":"Unspecified","priority":"P5","id":1911742,"creation_time":"2024-08-06T09:10:39Z","severity":"S4","last_change_time":"2024-12-11T07:56:08Z","summary":"22.47% decision () regression on Mon July 29 2024","status":"NEW","component":"Performance"},{"status":"NEW","summary":"8.65 - 5.66% damp jstracer.server-performance.DAMP / damp jstracer.webconsole-performance.DAMP + 2 more (Linux) regression on Fri August 2 2024","last_change_time":"2024-08-22T10:08:37Z","component":"Debugger","op_sys":"Unspecified","keywords":["devtools-perf-regression","perf","perf-alert","regression"],"id":1912968,"priority":"P3","severity":"S3","creation_time":"2024-08-13T14:40:45Z"},{"severity":"S4","creation_time":"2024-08-14T14:18:38Z","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1913159,"priority":"P3","status":"NEW","summary":"0.28 - 0.27% Base Content JS / Base Content JS (OSX, Windows) regression on Wed August 7 2024","last_change_time":"2024-08-28T15:37:13Z","component":"JavaScript Engine"},{"severity":"S3","creation_time":"2024-08-23T06:57:37Z","keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1914554,"last_change_time":"2024-10-10T20:15:35Z","summary":"Regression on SP3-Charts-observable-plot around 21Aug2024","status":"NEW","component":"SVG"},{"last_change_time":"2024-11-05T17:01:55Z","status":"REOPENED","summary":"14 - 2.61% speedometer3 React-Stockcharts-SVG/total + 17 more (Linux, OSX, Windows) regression on Tue August 27 2024","component":"SVG","keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1917560,"creation_time":"2024-09-09T10:42:04Z","severity":"S3"},{"status":"NEW","summary":"0.5 - 0.22% installer size / installer size + 4 more (OSX) regression on Wed September 11 2024","last_change_time":"2024-09-20T21:01:06Z","component":"Graphics: CanvasWebGL","op_sys":"Unspecified","keywords":["perf-alert","regression"],"id":1918406,"priority":"P3","creation_time":"2024-09-12T13:49:39Z","severity":"S3"},{"keywords":["backlog-deferred","perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"P5","id":1927807,"creation_time":"2024-10-29T15:39:05Z","severity":"S4","last_change_time":"2025-02-02T16:40:29Z","summary":"%X- %Y regression testing bug","status":"REOPENED","component":"Raptor"},{"priority":"--","id":1939022,"keywords":["perf-alert","regression"],"op_sys":"Unspecified","severity":"--","creation_time":"2024-12-24T12:28:44Z","component":"Webext Storage","last_change_time":"2025-01-24T15:17:18Z","summary":"0.64% installer size (Windows) regression on Fri December 20 2024","status":"NEW"},{"component":"Webext Storage","status":"NEW","summary":"1.03 - 0.79% installer size / installer size + 2 more (Linux, OSX) regression on Sat December 21 2024","last_change_time":"2025-02-04T09:44:44Z","id":1939258,"priority":"--","op_sys":"Unspecified","keywords":["perf-alert","regression"],"severity":"--","creation_time":"2024-12-27T12:28:49Z"},{"creation_time":"2025-01-03T16:14:07Z","severity":"S3","keywords":["backlog-deferred","perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"P3","id":1939888,"last_change_time":"2025-02-15T17:05:00Z","status":"NEW","summary":"12.44% Heap Unclassified Fresh start [+30s] (Linux) regression on Wed October 30 2024","component":"Layout"},{"component":"DOM: Events","status":"ASSIGNED","summary":"6.51 - 4.77% speedometer3 TodoMVC-Svelte-Complex-DOM/DeletingAllItems/Sync / speedometer3 TodoMVC-Svelte-Complex-DOM/DeletingAllItems/Sync (Linux) regression on Wed January 15 2025","last_change_time":"2025-04-22T17:54:51Z","id":1943071,"priority":"--","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"creation_time":"2025-01-22T15:10:50Z","severity":"S3"},{"creation_time":"2025-01-27T15:46:24Z","severity":"S3","op_sys":"Unspecified","keywords":["backlog-deferred","perf","perf-alert","regression"],"id":1944005,"priority":"--","status":"NEW","summary":"2.73% google-search LastVisualChange (Linux) regression on Fri January 17 2025","last_change_time":"2025-10-20T20:34:03Z","component":"Memory Allocator"},{"severity":"S3","creation_time":"2025-01-28T12:01:57Z","op_sys":"Unspecified","keywords":["devtools-perf-regression","perf","perf-alert"],"id":1944270,"priority":"P3","status":"NEW","summary":"8.95% damp source-map.SourceMapGenerator-toString.DAMP (Windows) regression on Tue January 21 2025","last_change_time":"2025-01-31T02:52:29Z","component":"Debugger"},{"op_sys":"Unspecified","keywords":["backlog-deferred","perf","perf-alert","regression","talos-regression"],"id":1955585,"priority":"P3","severity":"S4","creation_time":"2025-03-21T12:04:29Z","summary":"3.54% startup_about_home_paint_cached (Windows) regression on Mon March 17 2025","status":"NEW","last_change_time":"2026-02-23T06:47:21Z","component":"New Tab Page"},{"last_change_time":"2025-05-08T19:45:39Z","status":"NEW","summary":"56.17 - 6.08% pdfpaint issue12295.pdf / pdfpaint issue17981.pdf + 23 more (Linux, OSX, Windows) regression on Mon March 24 2025","component":"PDF Viewer","severity":"S3","creation_time":"2025-04-03T12:50:35Z","keywords":["backlog-deferred","perf","perf-alert","regression","talos-regression"],"op_sys":"Unspecified","priority":"P3","id":1958264},{"severity":"--","creation_time":"2025-04-04T17:50:32Z","keywords":["backlog-deferred","perf","perf-alert","regression"],"op_sys":"Android","priority":"--","id":1958554,"last_change_time":"2025-09-18T16:19:15Z","status":"NEW","summary":"777.23 - 2.98% background-resource cpuTime-total-backgrounding-diff / applink-startup-first-frame cold_main_first_frame.median + 101 more (Android) regression on Thu March 27 2025","component":"Homepage"},{"summary":"8.99 - 6.11% pdfpaint issue12295.pdf / pdfpaint issue12810.pdf + 5 more (Linux, Windows) regression on Thu March 27 2025","status":"NEW","last_change_time":"2026-03-16T07:04:11Z","component":"PDF Viewer","op_sys":"Unspecified","keywords":["backlog-deferred","perf","perf-alert","regression","talos-regression"],"id":1958555,"priority":"P3","creation_time":"2025-04-04T17:57:15Z","severity":"S3"},{"component":"Layout: Positioned","summary":"5.35% perf_reftest_singletons insert-nth-edge-has-pseudo.html (Linux) regression on Tue April 8 2025","status":"ASSIGNED","last_change_time":"2025-04-29T13:07:46Z","id":1960338,"priority":"--","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"severity":"S3","creation_time":"2025-04-14T12:37:56Z"},{"priority":"P1","id":1968988,"keywords":["backlog-deferred","perf","perf-alert","regression"],"op_sys":"Android","severity":"S2","creation_time":"2025-05-28T15:47:20Z","component":"General","last_change_time":"2025-10-23T19:46:04Z","status":"NEW","summary":"32.59 - 2.04% bing-search-restaurants FirstVisualChange / youtube LastVisualChange + 79 more (Android) regression on Mon May 19 2025"},{"severity":"--","creation_time":"2025-06-02T11:27:25Z","priority":"--","id":1969857,"keywords":["backlog-deferred","perf","perf-alert","regression"],"op_sys":"Android","component":"DOM: Navigation","last_change_time":"2025-11-08T13:38:35Z","summary":"12.28 - 5.38% espn loadtime / bild-de LastVisualChange + 2 more (Android) regression on Mon May 19 2025","status":"NEW"},{"component":"Tooling","last_change_time":"2025-11-20T18:07:31Z","summary":"431.72 - 4.14% background-resource pss-tab-backgrounding-diff / foreground-resource rss-main-50% + 3 more (Android) regression on Thu May 29 2025","status":"NEW","severity":"S3","creation_time":"2025-06-13T06:44:40Z","priority":"--","id":1971936,"keywords":["perf","perf-alert","regression"],"op_sys":"Android"},{"component":"Search","last_change_time":"2026-02-18T20:12:17Z","summary":"7.31 - 5.26% baseline-profile:fenix cold_startup.no_baseline.minimum / baseline-profile:fenix cold_startup.baseline.maximum + 1 more (Android) regression on Sat June 7 2025","status":"ASSIGNED","creation_time":"2025-06-16T12:19:22Z","severity":"S3","priority":"--","id":1972310,"keywords":["perf","perf-alert","regression","talos-regression"],"op_sys":"Android"},{"status":"ASSIGNED","summary":"23.09 - 4.67% expedia ContentfulSpeedIndex / fandom SpeedIndex + 5 more (Linux, OSX) regression on Sun June 29 2025","last_change_time":"2025-09-18T15:19:43Z","component":"Panning and Zooming","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":1975418,"priority":"P2","severity":"S3","creation_time":"2025-07-03T11:14:42Z"},{"last_change_time":"2025-10-23T09:52:07Z","summary":"1500 - 12.69% background-resource cpuTime-crashhelper-background-diff / foreground-resource rss-crashhelper-start + 18 more (Android) regression on Fri July 4 2025","status":"NEW","component":"Performance","creation_time":"2025-07-10T09:17:30Z","severity":"S4","keywords":["backlog-deferred","perf","perf-alert","regression","talos-regression"],"op_sys":"Android","priority":"P3","id":1976641},{"creation_time":"2025-07-11T16:23:26Z","severity":"S2","id":1976928,"priority":"P3","op_sys":"Android","keywords":["backlog-deferred","perf","perf-alert","regression"],"component":"General","status":"NEW","summary":"8.82 - 2.79% vpl-h264 estimatedAnyFrameLatency / vpl-h264 lastFrame + 19 more (Android) regression on Fri July 4 2025","last_change_time":"2025-10-02T08:28:55Z"},{"component":"General","summary":"Large number of static constructors with GCC 10","status":"NEW","last_change_time":"2026-03-16T13:45:34Z","id":1984677,"priority":"P3","op_sys":"Unspecified","keywords":["perf-alert","regression"],"severity":"--","creation_time":"2025-08-22T14:32:46Z"},{"keywords":["backlog-deferred","perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":1985793,"creation_time":"2025-08-28T14:17:52Z","severity":"--","last_change_time":"2025-09-17T10:40:40Z","summary":"6.2% bing-search loadtime (OSX) regression on Tue August 19 2025","status":"NEW","component":"New Tab Page"},{"creation_time":"2025-10-09T14:08:20Z","severity":"S3","id":1993498,"priority":"P3","op_sys":"Unspecified","keywords":["devtools-perf-regression","perf","perf-alert","regression"],"component":"General","status":"NEW","summary":"249.79% target:parent-process memory (Linux) regression on Fri September 19 2025","last_change_time":"2025-11-18T16:53:31Z"},{"component":"Tooling & Investigations","status":"NEW","summary":"4.57 - 4.18% browser_translations_perf_tiny.js post-gc-parent-process-memory-usage / browser_translations_perf_basememory.js post-gc-parent-process-memory-usage + 8 more (Linux, Windows) regression on Sun October 26 2025","last_change_time":"2025-11-03T13:46:22Z","id":1997898,"priority":"--","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"creation_time":"2025-11-03T12:03:54Z","severity":"--"},{"severity":"S3","creation_time":"2025-11-14T16:46:57Z","priority":"--","id":2000258,"keywords":["backlog-deferred","perf","perf-alert","regression","talos-regression"],"op_sys":"Unspecified","component":"CSS Parsing and Computation","last_change_time":"2025-12-01T14:20:05Z","status":"NEW","summary":"5.53 - 5.32% perf_reftest_singletons nth-index-1.html / perf_reftest_singletons nth-index-2.html (Linux) regression."},{"component":"Theme","summary":"493.96 - 2.04% tp5o_scroll / startup_about_home_paint_cached + 7 more (Linux) regression on Fri January 30 2026","status":"NEW","last_change_time":"2026-03-12T09:37:57Z","id":2014122,"priority":"P1","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"creation_time":"2026-02-03T12:31:51Z","severity":"S3"},{"summary":"8.83 - 8.19% pdfpaint bug1749563.pdf / pdfpaint bug1795263.pdf + 1 more (Linux) regression on Sat February 7 2026","status":"NEW","last_change_time":"2026-03-16T09:15:23Z","component":"PDF Viewer","creation_time":"2026-02-11T14:58:03Z","severity":"S3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"id":2016122,"priority":"P3"},{"severity":"S3","creation_time":"2026-02-12T14:21:57Z","id":2016438,"priority":"P3","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"component":"Storage: IndexedDB","summary":"55.08 - 50.08% idb-open-few-seq delete_duration / idb-open-few-par delete_duration (Windows) regression on Fri February 6 2026","status":"NEW","last_change_time":"2026-03-10T15:44:20Z"},{"keywords":["perf","perf-alert","regression"],"op_sys":"Android","priority":"--","id":2016452,"severity":"--","creation_time":"2026-02-12T15:14:15Z","last_change_time":"2026-03-09T12:17:53Z","status":"NEW","summary":"2.99 - 2.02% speedometer3 NewsSite-Next/NavigateToPolitics/Sync / speedometer3 NewsSite-Next/NavigateToUS/Sync + 1 more (Android) regression on Fri January 30 2026","component":"Performance"},{"severity":"--","creation_time":"2026-02-25T10:59:53Z","id":2019234,"priority":"--","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"component":"PDF Viewer","summary":"8.18 - 6% pdfpaint issue7872.pdf / pdfpaint bug1539074.1.pdf + 11 more (Linux) regression on Thu February 19 2026","status":"NEW","last_change_time":"2026-03-16T09:40:12Z"},{"priority":"--","id":2020567,"keywords":["perf","perf-alert","regression","talos-regression"],"op_sys":"Unspecified","severity":"S3","creation_time":"2026-03-03T07:37:21Z","component":"DOM: Core & HTML","last_change_time":"2026-03-09T08:01:33Z","summary":"13.35 - 6.46% perf_reftest coalesce-2.html + 2 more (Linux) regression on Tue February 24 2026","status":"NEW"},{"last_change_time":"2026-03-13T09:08:07Z","status":"NEW","summary":"3.44 - 2.1% speedometer3 TodoMVC-Lit-Complex-DOM/CompletingAllItems/Async + 5 more (OSX) regression on Wed February 25 2026","component":"Layout","severity":"--","creation_time":"2026-03-04T07:22:08Z","keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","priority":"--","id":2020900},{"component":"Messaging System","status":"NEW","summary":"2.29% welcome ContentfulSpeedIndex (OSX) regression on Fri February 27 2026","last_change_time":"2026-03-10T15:51:51Z","id":2020941,"priority":"--","op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"severity":"--","creation_time":"2026-03-04T11:28:58Z"},{"creation_time":"2026-03-04T13:29:33Z","severity":"S3","priority":"P3","id":2020981,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","component":"Graphics: WebRender","last_change_time":"2026-03-12T05:39:46Z","summary":"39.23 - 4.23% bing-search FirstVisualChange + 12 more (Android, OSX) regression on Mon February 23 2026","status":"NEW"},{"summary":"3.46% bing FirstVisualChange (Android) regression on Mon February 9 2026","status":"NEW","last_change_time":"2026-03-10T15:52:19Z","component":"Homepage","op_sys":"Android","keywords":["perf","perf-alert","regression"],"id":2021282,"priority":"--","severity":"--","creation_time":"2026-03-05T12:36:19Z"},{"summary":"21.02 - 7.25% pdfpaint issue14982.pdf + 5 more (Linux, OSX) regression on Mon March 2 2026","status":"NEW","last_change_time":"2026-03-10T18:21:14Z","component":"PDF Viewer","op_sys":"Unspecified","keywords":["perf","perf-alert","regression","talos-regression"],"id":2021577,"priority":"--","creation_time":"2026-03-06T13:33:22Z","severity":"--"},{"component":"Performance Engineering","last_change_time":"2026-03-12T04:46:18Z","summary":"4.38 - 3.62% damp simple.netmonitor.exportHar + 1 more (Windows) regression on Wed March 4 2026","status":"NEW","severity":"--","creation_time":"2026-03-11T14:43:11Z","priority":"--","id":2022565,"keywords":["devtools-perf-regression","perf","perf-alert","regression"],"op_sys":"Unspecified"},{"component":"Onboarding","status":"NEW","summary":"9.79% baseline-profile:fenix startupNone.ttid.median (Android) regression on Fri March 6 2026","last_change_time":"2026-03-13T08:44:39Z","creation_time":"2026-03-13T08:07:59Z","severity":"--","id":2023084,"priority":"--","op_sys":"Android","keywords":["perf","perf-alert","regression"]},{"op_sys":"Unspecified","keywords":["perf","perf-alert","regression"],"id":2023159,"priority":"P2","severity":"S2","creation_time":"2026-03-13T13:06:11Z","summary":"28.4 - 15.12% ve-av1-q wallclock-for-tracking-only + 2 more (OSX) regression on Mon March 9 2026","status":"NEW","last_change_time":"2026-03-14T22:01:24Z","component":"Audio/Video: Playback"},{"component":"Internationalization","last_change_time":"2026-03-16T16:48:09Z","summary":"50.3 - 25.05% jetstream3 cdjs-First + 24 more (Android, Linux, OSX, Windows) regression on Wed March 11 2026","status":"ASSIGNED","priority":"--","id":2023534,"keywords":["perf","perf-alert","regression"],"op_sys":"Unspecified","severity":"--","creation_time":"2026-03-16T10:50:02Z"}]}