Closed Bug 1944918 Opened 19 days ago Closed 18 days ago

Vertical tabs visually jump a bit when expanding and collapsing the new sidebar

Categories

(Firefox :: Sidebar, defect, P1)

defect

Tracking

()

VERIFIED FIXED
136 Branch
Tracking Status
firefox-esr128 --- unaffected
firefox134 --- unaffected
firefox135 --- unaffected
firefox136 --- verified

People

(Reporter: kcochrane, Assigned: kcochrane)

References

(Regressed 1 open bug, Regression)

Details

(Keywords: regression, Whiteboard: [fidefe-sidebar])

Attachments

(1 file)

As part of bug 1941344, the padding-block was changed for vertical tabs only when the sidebar is collapsed. We should match this padding-block regardless of whether the sidebar is collapsed or expanded to ensure a smooth transition between the two states.

Assignee: nobody → kcochrane
Status: NEW → ASSIGNED
Severity: -- → S3
Priority: -- → P2
Priority: P2 → P1

Set release status flags based on info from the regressing bug 1941344

Pushed by kcochrane@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/3b3af3db6f2c Fix visual jump of vertical tabs when expanding/collapsing the sidebar r=desktop-theme-reviewers,tabbrowser-reviewers,sidebar-reviewers,nsharpley,mconley,sfoster
Status: ASSIGNED → RESOLVED
Closed: 18 days ago
Resolution: --- → FIXED
Target Milestone: --- → 136 Branch
Flags: qe-verify+

Reproduced the issue with Firefox 136.0a1 (2025-01-29) on Windows 10x64. Vertical tabs are moving when expanding and collapsing the sidebar.
The issue has been verified fixed with Firefox 136.0b2 on Windows 10x64, macOS 12, and Ubuntu 24. The vertical tabs no longer move when expanding and collapsing the sidebar.

Status: RESOLVED → VERIFIED
Has STR: --- → yes
Flags: qe-verify+
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