2010322 - browser_sidebar_prefs.js and browser_tools_migration.js fail standalone because sidebar is not visible

Status: RESOLVED FIXED

(Firefox :: Sidebar, defect)

Description

[Florian Quèze [:florian]]

These tests fail standalone because they check sidebar.toolButtons.length when the sidebar is hidden. When hidden, the lit-element doesn't render the buttons in the DOM, so the query returns 0 even though the JavaScript state is correct.

In folder runs, browser_sidebar_pinned_tabs.js runs first and sets sidebar.visibility = "always-show", making the sidebar visible for subsequent tests.

Comment 1

[Florian Quèze [:florian]]

Attachment: Bug 2010322 - browser_sidebar_prefs.js and browser_tools_migration.js fail standalone because sidebar is not visible, r=#sidebar-reviewers.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/0540aee6a9ae
https://hg.mozilla.org/integration/autoland/rev/07735d86e7f0
browser_sidebar_prefs.js and browser_tools_migration.js fail standalone because sidebar is not visible, r=kcochrane.

Comment 4

[agoloman]

https://hg.mozilla.org/mozilla-central/rev/07735d86e7f0

Comment 5

[Intermittent Failures Robot]

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

Repository breakdown:

• autoland: 1

Table

	no_variant
macosx1015-x86_64/debug	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=2010322&startday=2026-07-13&endday=2026-07-19&tree=all