2002101 - Intermittent browser/components/preferences/tests/browser_experimental_features_hidden_when_not_public.js | single tracking bug

Status: RESOLVED FIXED

(Firefox :: Settings UI, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: sstanca [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=537222761&repo=autoland&task=JpZaVcZuSxKIj3_Csy9rMw.0
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/JpZaVcZuSxKIj3_Csy9rMw/runs/0/artifacts/public/logs/live_backing.log

---

[task 2025-11-24T19:51:53.211+00:00] 19:51:53     INFO - TEST-PASS | browser/components/preferences/tests/browser_experimental_features_hidden_when_not_public.js | Experimental Features section should be hidden when all features are hidden - 
[task 2025-11-24T19:51:53.212+00:00] 19:51:53     INFO - Buffered messages finished
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - TEST-UNEXPECTED-FAIL | browser/components/preferences/tests/browser_experimental_features_hidden_when_not_public.js | Experimental Features header should be hidden when all features are hidden - 
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - Stack trace:
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - chrome://mochikit/content/browser-test.js:test_ok:1759
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - chrome://mochitests/content/browser/browser/components/preferences/tests/browser_experimental_features_hidden_when_not_public.js:testNonPublicFeaturesShouldntGetDisplayed:66
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - chrome://mochikit/content/browser-test.js:handleTask:1279
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1368
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1515
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1261
[task 2025-11-24T19:51:53.214+00:00] 19:51:53     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1058
[task 2025-11-24T19:51:53.215+00:00] 19:51:53     INFO - TEST-PASS | browser/components/preferences/tests/browser_experimental_features_hidden_when_not_public.js | When the experimental features section is hidden, navigating to #experimental should redirect to #general - 

Comment 1

[Intermittent Failures Robot]

27 failures were associated with this bug in the last 7 days.

Repository breakdown:

• try: 5
• autoland: 17
• mozilla-central: 5

Table

	msix	msix-cf	no_variant	socketprocess_networking	spi-nw
macosx1015-x86_64/debug			2		4
windows11-x86/debug			1
windows11-x86_64/asan			7
windows11-x86_64/debug	5	1	4		2
windows11-x86_64/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2025-11-24&endday=2025-11-30&tree=all

Comment 2

[Intermittent Failures Robot]

33 failures were associated with this bug in the last 7 days.

This failure happened more than 30 times this week! Resolving this bug is a high priority.

Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled.

Repository breakdown:

• autoland: 21
• try: 3
• mozilla-central: 9

Table

	msix	no_variant	socketprocess_networking	spi-nw
macosx1015-x86_64/debug		3		1
windows11-x86/debug		5
windows11-x86_64/asan		9
windows11-x86_64/debug	9	4		2

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2025-12-01&endday=2025-12-07&tree=all

Comment 3

[Intermittent Failures Robot]

38 failures were associated with this bug in the last 7 days.

This failure happened more than 30 times this week! Resolving this bug is a high priority.

Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled.

Repository breakdown:

• autoland: 25
• mozilla-central: 10
• try: 3

Table

	msix	no_variant	socketprocess_networking	spi-nw
macosx1015-x86_64/debug		3		9
windows11-x86_64/asan		9
windows11-x86_64/debug	13	1		3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2025-12-08&endday=2025-12-14&tree=all

Comment 4

[Intermittent Failures Robot]

31 failures were associated with this bug in the last 7 days.

This failure happened more than 30 times this week! Resolving this bug is a high priority.

Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled.

Repository breakdown:

• autoland: 26
• mozilla-central: 2
• try: 3

Table

	msix	no_variant	nofis
android-x86/opt			1
macosx1015-x86_64/debug		4
windows11-x86/debug		4
windows11-x86_64/asan		8
windows11-x86_64/debug	9	5

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2025-12-15&endday=2025-12-21&tree=all

Comment 5

[Intermittent Failures Robot]

7 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 3
• mozilla-central: 1
• try: 3

Table

	msix	no_variant
macosx1015-x86_64/debug		2
windows11-x86_64/asan		1
windows11-x86_64/debug	4

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2025-12-22&endday=2025-12-28&tree=all

Comment 6

[Intermittent Failures Robot]

8 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 6
• mozilla-central: 1
• try: 1

Table

	msix	no_variant
windows11-x86/debug		1
windows11-x86_64/asan		4
windows11-x86_64/debug	1	1
windows11-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2025-12-29&endday=2026-01-04&tree=all

Comment 7

[Intermittent Failures Robot]

17 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 16
• try: 1

Table

	msix	no_variant
macosx1015-x86_64/debug		4
windows11-x86/debug		1
windows11-x86_64/asan		5
windows11-x86_64/debug	6	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2026-01-05&endday=2026-01-11&tree=all

Comment 8

[Intermittent Failures Robot]

16 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 11
• mozilla-beta: 5

Table

	msix	no_variant
macosx1015-x86_64/debug		1
windows11-x86/debug		2
windows11-x86_64/asan		2
windows11-x86_64/debug	6	4
windows11-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2026-01-13&endday=2026-01-13&tree=all

Comment 9

[Intermittent Failures Robot]

46 failures were associated with this bug in the last 7 days.

This failure happened more than 30 times this week! Resolving this bug is a high priority.

Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled.

Repository breakdown:

• autoland: 32
• mozilla-central: 5
• mozilla-beta: 9

Table

	msix	no_variant
macosx1015-x86_64/debug		7
windows11-x86/debug		6
windows11-x86_64/asan		9
windows11-x86_64/debug	12	7
windows11-x86_64/opt	3	2

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2026-01-12&endday=2026-01-18&tree=all

Comment 10

[Intermittent Failures Robot]

36 failures were associated with this bug in the last 7 days.

This failure happened more than 30 times this week! Resolving this bug is a high priority.

Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled.

Repository breakdown:

• mozilla-central: 3
• autoland: 27
• mozilla-beta: 4
• try: 2

Table

	msix	no_variant
macosx1015-x86_64/debug		6
windows11-x86/debug		2
windows11-x86_64/asan		12
windows11-x86_64/debug	11	4
windows11-x86_64/opt	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2026-01-19&endday=2026-01-25&tree=all

Comment 11

[Florian Quèze [:florian]]

This is a perma-fail when running standalone.

Comment 12

[Florian Quèze [:florian]]

Attachment: Bug 2002101 - Wait for firefoxExperimentalCategory to be hidden in browser_experimental_features_hidden_when_not_public.js. r=mstriemer

The test was checking firefoxExperimentalCategory.hidden immediately, but the
element becomes hidden asynchronously after the redirect to paneGeneral
completes. Adjust the waitForCondition to include this element.

Comment 13

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/ac1f0750e7dc
https://hg.mozilla.org/integration/autoland/rev/265471b827d9
Wait for firefoxExperimentalCategory to be hidden in browser_experimental_features_hidden_when_not_public.js. r=Gijs

Comment 14

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/265471b827d9

Comment 15

[Intermittent Failures Robot]

14 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 13
• mozilla-beta: 1

Table

	msix	no_variant
macosx1015-x86_64/debug		1
windows11-x86/debug		1
windows11-x86_64/asan		1
windows11-x86_64/debug	8	3

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2026-01-26&endday=2026-02-01&tree=all

Comment 16

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Table

	msix
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2026-02-02&endday=2026-02-08&tree=all

Comment 17

[Intermittent Failures Robot]

3 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 3

Table

	msix	no_variant
macosx1015-x86_64/debug		1
windows11-x86_64/asan		1
windows11-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2002101&startday=2026-02-09&endday=2026-02-15&tree=all