Bug 1911904 Comment 102 Edit History

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Original comment by

agoloman

on 2026-05-20 11:58:11 PDT

Hi, could you take a look at this failure? It has over 200 failures in the last 30 days.

```
[task 2026-05-20T18:27:22.812+00:00] 18:27:22     INFO - TEST-PASS | browser/components/backup/tests/browser/browser_settings.js | test_last_backup_info_and_location - Backup Dir Path was set - "C:\\Users\\task_177929851725255\\AppData\\Local\\Temp\\testLastBackupInfo" == true
[task 2026-05-20T18:27:22.813+00:00] 18:27:22     INFO - Buffered messages finished
[task 2026-05-20T18:27:22.813+00:00] 18:27:22     INFO - TEST-UNEXPECTED-FAIL | browser/components/backup/tests/browser/browser_settings.js | test_last_backup_info_and_location - Uncaught exception in test - NotFoundError: Could not get children of `C:\Users\task_177929851725255\AppData\Local\Temp\testLastBackupInfo': directory does not exist (NS_ERROR_FILE_NOT_FOUND)
[task 2026-05-20T18:27:22.814+00:00] 18:27:22     INFO - Leaving test test_last_backup_info_and_location
[task 2026-05-20T18:27:22.815+00:00] 18:27:22     INFO - Entering test test_dialogs_close_on_cancel_with_restore_disabled
[task 2026-05-20T18:27:22.835+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 1fb2b3af000 == 9 [pid = 8064] [id = 17]
[task 2026-05-20T18:27:22.844+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 37 (1fb1edc5400) [pid = 8064] [serial = 41] [outer = 0]
[task 2026-05-20T18:27:22.845+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 38 (1fb301ae000) [pid = 8064] [serial = 42] [outer = 1fb1edc5400]
[task 2026-05-20T18:27:22.937+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064, Main Thread] WARNING: NS_ENSURE_SUCCESS_VOID(rv) failed with result 0x804B000A (NS_ERROR_MALFORMED_URI): file checkouts\gecko\dom\base\Document.cpp:17855
[task 2026-05-20T18:27:22.941+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 39 (1fb18a8b600) [pid = 8064] [serial = 43] [outer = 1fb1edc5400]
[task 2026-05-20T18:27:23.527+00:00] 18:27:23     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 1fb1c823c00 == 10 [pid = 8064] [id = 18]
[task 2026-05-20T18:27:23.530+00:00] 18:27:23     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 40 (1fb278e3900) [pid = 8064] [serial = 44] [outer = 0]
[task 2026-05-20T18:27:23.531+00:00] 18:27:23     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 41 (1fb17be6100) [pid = 8064] [serial = 45] [outer = 1fb278e3900]
[task 2026-05-20T18:27:23.541+00:00] 18:27:23     INFO - GECKO(2036) | [Parent 8064, Main Thread] WARNING: NS_ENSURE_TRUE(entry && entry->mInfo->mSharedState.Get()) failed: file checkouts\gecko\docshell\shistory\SessionHistoryEntry.cpp:1147
[task 2026-05-20T18:27:24.380+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/SlowChromeEvent Please do not use mouseenter/leave events in chrome. They are slower than mouseover/out! chrome://global/content/vendor/lit.all.mjs line 22 > importedModule:2024:26
[task 2026-05-20T18:27:24.725+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 40 (1fb1ed8a200) [pid = 8064] [serial = 32] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.727+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 39 (1fb2aee1000) [pid = 8064] [serial = 22] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.728+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 38 (1fb2ae37c00) [pid = 8064] [serial = 17] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.728+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 37 (1fb27830100) [pid = 8064] [serial = 12] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.730+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 36 (1fb2782f700) [pid = 8064] [serial = 27] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.967+00:00] 18:27:24     INFO - TEST-PASS | browser/components/backup/tests/browser/browser_settings.js | test_dialogs_close_on_cancel_with_restore_disabled - disable-backup-encryption-dialog was opened.
[task 2026-05-20T18:27:24.998+00:00] 18:27:24     INFO - TEST-PASS | browser/components/backup/tests/browser/browser_settings.js | test_dialogs_close_on_cancel_with_restore_disabled - disable-backup-encryption-dialog was closed by dialogCancel.
```

Revision 1 by

agoloman

on 2026-05-20 11:58:30 PDT

Hi, could you take a look at this failure? It has over 200 failures in the last 30 days.
[Failure log](https://treeherder.mozilla.org/logviewer?job_id=567647046&repo=autoland&task=PVNSB529Tr2jissLJRgsFA.0)

```
[task 2026-05-20T18:27:22.812+00:00] 18:27:22     INFO - TEST-PASS | browser/components/backup/tests/browser/browser_settings.js | test_last_backup_info_and_location - Backup Dir Path was set - "C:\\Users\\task_177929851725255\\AppData\\Local\\Temp\\testLastBackupInfo" == true
[task 2026-05-20T18:27:22.813+00:00] 18:27:22     INFO - Buffered messages finished
[task 2026-05-20T18:27:22.813+00:00] 18:27:22     INFO - TEST-UNEXPECTED-FAIL | browser/components/backup/tests/browser/browser_settings.js | test_last_backup_info_and_location - Uncaught exception in test - NotFoundError: Could not get children of `C:\Users\task_177929851725255\AppData\Local\Temp\testLastBackupInfo': directory does not exist (NS_ERROR_FILE_NOT_FOUND)
[task 2026-05-20T18:27:22.814+00:00] 18:27:22     INFO - Leaving test test_last_backup_info_and_location
[task 2026-05-20T18:27:22.815+00:00] 18:27:22     INFO - Entering test test_dialogs_close_on_cancel_with_restore_disabled
[task 2026-05-20T18:27:22.835+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 1fb2b3af000 == 9 [pid = 8064] [id = 17]
[task 2026-05-20T18:27:22.844+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 37 (1fb1edc5400) [pid = 8064] [serial = 41] [outer = 0]
[task 2026-05-20T18:27:22.845+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 38 (1fb301ae000) [pid = 8064] [serial = 42] [outer = 1fb1edc5400]
[task 2026-05-20T18:27:22.937+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064, Main Thread] WARNING: NS_ENSURE_SUCCESS_VOID(rv) failed with result 0x804B000A (NS_ERROR_MALFORMED_URI): file checkouts\gecko\dom\base\Document.cpp:17855
[task 2026-05-20T18:27:22.941+00:00] 18:27:22     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 39 (1fb18a8b600) [pid = 8064] [serial = 43] [outer = 1fb1edc5400]
[task 2026-05-20T18:27:23.527+00:00] 18:27:23     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 1fb1c823c00 == 10 [pid = 8064] [id = 18]
[task 2026-05-20T18:27:23.530+00:00] 18:27:23     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 40 (1fb278e3900) [pid = 8064] [serial = 44] [outer = 0]
[task 2026-05-20T18:27:23.531+00:00] 18:27:23     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 41 (1fb17be6100) [pid = 8064] [serial = 45] [outer = 1fb278e3900]
[task 2026-05-20T18:27:23.541+00:00] 18:27:23     INFO - GECKO(2036) | [Parent 8064, Main Thread] WARNING: NS_ENSURE_TRUE(entry && entry->mInfo->mSharedState.Get()) failed: file checkouts\gecko\docshell\shistory\SessionHistoryEntry.cpp:1147
[task 2026-05-20T18:27:24.380+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/SlowChromeEvent Please do not use mouseenter/leave events in chrome. They are slower than mouseover/out! chrome://global/content/vendor/lit.all.mjs line 22 > importedModule:2024:26
[task 2026-05-20T18:27:24.725+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 40 (1fb1ed8a200) [pid = 8064] [serial = 32] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.727+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 39 (1fb2aee1000) [pid = 8064] [serial = 22] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.728+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 38 (1fb2ae37c00) [pid = 8064] [serial = 17] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.728+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 37 (1fb27830100) [pid = 8064] [serial = 12] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.730+00:00] 18:27:24     INFO - GECKO(2036) | [Parent 8064: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 36 (1fb2782f700) [pid = 8064] [serial = 27] [outer = 0] [url = about:blank]
[task 2026-05-20T18:27:24.967+00:00] 18:27:24     INFO - TEST-PASS | browser/components/backup/tests/browser/browser_settings.js | test_dialogs_close_on_cancel_with_restore_disabled - disable-backup-encryption-dialog was opened.
[task 2026-05-20T18:27:24.998+00:00] 18:27:24     INFO - TEST-PASS | browser/components/backup/tests/browser/browser_settings.js | test_dialogs_close_on_cancel_with_restore_disabled - disable-backup-encryption-dialog was closed by dialogCancel.
```

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