Filed by: ctuns [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=406864830&repo=mozilla-central
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/a6_IS4O0S5GeDbw1ugbl0w/runs/0/artifacts/public/logs/live_backing.log

[task 2023-02-24T19:15:44.048Z] 19:15:44     INFO - TEST-PASS | toolkit/components/aboutprocesses/tests/browser/browser_aboutprocesses_show_threads.js | 4035 == 4035 - 
[task 2023-02-24T19:15:44.049Z] 19:15:44     INFO - Console message: [JavaScript Error: "TypeError: can't access property "audioPlaybackStopped", browser is null" {file: "resource://gre/actors/AudioPlaybackParent.jsm" line: 24}]
[task 2023-02-24T19:15:44.049Z] 19:15:44     INFO - receiveMessage@resource://gre/actors/AudioPlaybackParent.jsm:24:9
[task 2023-02-24T19:15:44.049Z] 19:15:44     INFO - 
[task 2023-02-24T19:15:44.049Z] 19:15:44     INFO - Buffered messages logged at 19:15:10
[task 2023-02-24T19:15:44.050Z] 19:15:44     INFO - Console message: [JavaScript Error: "Timeout while waiting for extension child to shutdown: "Generated extension" (ID: test-aboutprocesses@mochi.test, moz-extension://8a45ee74-c591-42dd-8289-13dca127b4d2/)" {file: "resource://gre/modules/Extension.jsm" line: 3404}]
[task 2023-02-24T19:15:44.050Z] 19:15:44     INFO - shutdown@resource://gre/modules/Extension.jsm:3404:10
[task 2023-02-24T19:15:44.050Z] 19:15:44     INFO - 
[task 2023-02-24T19:15:44.050Z] 19:15:44     INFO - Buffered messages finished
[task 2023-02-24T19:15:44.051Z] 19:15:44     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/aboutprocesses/tests/browser/browser_aboutprocesses_show_threads.js | Test timed out - 
[task 2023-02-24T19:15:44.051Z] 19:15:44     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-02-24T19:15:44.052Z] 19:15:44     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/aboutprocesses/tests/browser/browser_aboutprocesses_show_threads.js | Extension not fully unloaded at test shutdown - 
[task 2023-02-24T19:15:44.052Z] 19:15:44     INFO - Stack trace:
[task 2023-02-24T19:15:44.052Z] 19:15:44     INFO - chrome://mochikit/content/browser-test.js:test_ok:1465
[task 2023-02-24T19:15:44.052Z] 19:15:44     INFO - chrome://mochikit/content/tests/SimpleTest/ExtensionTestUtils.js:ExtensionTestUtils.loadExtension/<:135
[task 2023-02-24T19:15:44.052Z] 19:15:44     INFO - chrome://mochikit/content/browser-test.js:nextTest:611
[task 2023-02-24T19:15:44.052Z] 19:15:44     INFO - GECKO(3996) | MEMORY STAT | vsize 7917MB | residentFast 369MB | heapAllocated 119MB
[task 2023-02-24T19:15:44.053Z] 19:15:44     INFO - TEST-OK | toolkit/components/aboutprocesses/tests/browser/browser_aboutprocesses_show_threads.js | took 45048ms
[task 2023-02-24T19:15:44.053Z] 19:15:44     INFO - checking window state
[task 2023-02-24T19:15:44.054Z] 19:15:44     INFO - TEST-START | toolkit/components/aboutprocesses/tests/browser/browser_aboutprocesses_twisty.js

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit auto_nag documentation.

New failure instance: https://treeherder.mozilla.org/logviewer?job_id=409898366&repo=autoland

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit BugBot documentation.

New failure instance: https://treeherder.mozilla.org/logviewer?job_id=416360264&repo=try

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit BugBot documentation.

New failure instance: https://treeherder.mozilla.org/logviewer?job_id=423519255&repo=autoland

(In reply to Intermittent Failures Robot from comment #13)

1 failures in 3520 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Platform and build breakdown:

• windows11-64-2009-qr: 1
  • debug: 1

The root cause of the Windows 11 failure is explained in bug 1778932 comment 66.