2037668 - Perma a11y [tier 2] devtools/client/inspector/shared/test/browser_styleinspector_tooltip-background-image.js | Node is not focusable via the accessibility API: id: | single tracking bug

Status: RESOLVED FIXED

(DevTools :: Inspector, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: amarc [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=564933038&repo=autoland&task=N_AQqmCqQm-vmq2E0mlp_w.0
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/N_AQqmCqQm-vmq2E0mlp_w/runs/0/artifacts/public/logs/live_backing.log

---

[task 2026-05-06T21:22:16.292+00:00] 21:22:16     INFO - TEST-PASS | devtools/client/inspector/shared/test/browser_styleinspector_tooltip-background-image.js | Tab was opened in the foreground when clicking on the link | "background-image" computed value for ".in-stylesheet.relative"
[task 2026-05-06T21:22:16.292+00:00] 21:22:16     INFO - Removing tab.
[task 2026-05-06T21:22:16.293+00:00] 21:22:16     INFO - Waiting for event: 'TabClose' on [object XULElement].
[task 2026-05-06T21:22:16.294+00:00] 21:22:16     INFO - Got event: 'TabClose' on [object XULElement].
[task 2026-05-06T21:22:16.296+00:00] 21:22:16     INFO - Tab removed and finished closing
[task 2026-05-06T21:22:16.296+00:00] 21:22:16     INFO - Buffered messages finished
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - TEST-UNEXPECTED-FAIL | devtools/client/inspector/shared/test/browser_styleinspector_tooltip-background-image.js | Node is not focusable via the accessibility API: id: , tagName: div, className: computed-expander theme-twisty computed-expandable
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/browser-test.js:test_ok:1887
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/tests/SimpleTest/AccessibilityUtils.js:a11yFail:812
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/tests/SimpleTest/AccessibilityUtils.js:assertFocusable:861
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/tests/SimpleTest/AccessibilityUtils.js:assertCanBeClicked:1233
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/tests/SimpleTest/AccessibilityUtils.js:runIfA11YChecks/this.AccessibilityUtils:1200
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/tests/SimpleTest/AccessibilityUtils.js:handleEvent:1319
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochitests/content/browser/devtools/client/inspector/shared/test/browser_styleinspector_tooltip-background-image.js:testCase:212
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochitests/content/browser/devtools/client/inspector/shared/test/browser_styleinspector_tooltip-background-image.js:null:31
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/browser-test.js:handleTask:1372
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1462
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1614
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1352
[task 2026-05-06T21:22:16.298+00:00] 21:22:16     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1060
[task 2026-05-06T21:22:16.299+00:00] 21:22:16     INFO - Check the link in "background-image" in the matched selectors section in ".in-stylesheet.relative"
[task 2026-05-06T21:22:16.300+00:00] 21:22:16     INFO - TEST-PASS | devtools/client/inspector/shared/test/browser_styleinspector_tooltip-background-image.js | Link has expected URL | "background-image" ".in-stylesheet.relative" item in matched selectors section

Comment 1

[Nicolas Chevobbe [:nchevobbe]]

Attachment: Bug 2037668 - [devtools] Disable focusableRule before clicking expanded in browser_styleinspector_tooltip-background-image.js. r=#devtools.

The test was failing in a11y jobs because the expand button isn't focusable.
The computed view does handle keyboard navigation, and the matched selector
section can be toggled with Enter when an item is focused, so we can disable
this accessibility check to avoid the failure.

Depends on D297370

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 2035503

Comment 3

[Nicolas Chevobbe [:nchevobbe]]

(patch submitted)

Comment 4

[Intermittent Failures Robot]

17 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 16
• mozilla-central: 1

Table

	a11y-checks
linux2404-x86_64/opt	17

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2037668&startday=2026-05-07&endday=2026-05-07&tree=all

Comment 5

[Intermittent Failures Robot]

21 failures were associated with this bug yesterday.

Repository breakdown:

• autoland: 17
• try: 1
• mozilla-central: 3

Table

	a11y-checks
linux2404-x86_64/opt	21

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2037668&startday=2026-05-08&endday=2026-05-08&tree=all

Comment 6

[Intermittent Failures Robot]

63 failures were associated with this bug in the last 7 days.
This is the #41 most frequent failure this week.

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: 54
• try: 1
• mozilla-central: 8

Table

	a11y-checks
linux2404-x86_64/opt	63

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2037668&startday=2026-05-04&endday=2026-05-10&tree=all

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/7b3580a88e2e
https://hg.mozilla.org/integration/autoland/rev/143ea955d0fb
[devtools] Disable focusableRule before clicking expanded in browser_styleinspector_tooltip-background-image.js. r=devtools-reviewers,bomsy.

Comment 8

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/143ea955d0fb

Comment 9

[Intermittent Failures Robot]

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

Repository breakdown:

• autoland: 4
• mozilla-central: 1

Table

	a11y-checks
linux2404-x86_64/opt	5

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2037668&startday=2026-05-11&endday=2026-05-17&tree=all