Closed Bug 2008756 Opened 5 months ago Closed 2 months ago

Split view's focus-outline is clipped on the right side of left tab

Categories

(Firefox :: Tabbed Browser: Split View, defect, P3)

defect

Tracking

()

RESOLVED FIXED
151 Branch
Tracking Status
firefox151 --- fixed

People

(Reporter: dholbert, Assigned: fatimohbakare3, NeedInfo)

References

Details

(Keywords: good-next-bug, Whiteboard: [fidefe-splitview][outreachy-sidebar-2026])

Attachments

(6 files)

Attached image screenshot

STR:

  1. Open two copies of https://example.org/ in split-view. (or any website will do)
  2. Focus the left tab and look at the focus outline that surrounds it.

ACTUAL RESULTS:
The right (center-most) edge of the focus outline is missing/clipped.

EXPECTED RESULTS:
No such missing focus-outline.

If I focus the right tab instead, then it gets fully surrounded with a focus outline.

I'm using Nightly 148.0a1 2026-01-06 on Ubuntu 25.04

Do you see this on windows too or just linux?

Severity: -- → S4
Flags: needinfo?(dholbert)
Whiteboard: [fidefe-splitview]

(In reply to Sarah Clements [:sclements] from comment #3)

Do you see this on windows too or just linux?

Also happens on Windows.

Attached video 2026_02_06_10_38_05.mp4

Actually, the outline of the unselected panel is also clipped. You can see four rounded corners left behind, which look strange.

(In reply to Sarah Clements [:sclements] from comment #3)

Do you see this on windows too or just linux?

Windows too, yes (confirming comment 4). Doesn't reproduce for me on macOS, though.

Flags: needinfo?(dholbert)
Keywords: good-next-bug
Priority: -- → P3
Whiteboard: [fidefe-splitview] → [fidefe-splitview][outreachy-sidebar-2026]

Hi can i work on this

assign me please

Assignee: nobody → ejirooghenekome
Status: NEW → ASSIGNED

I am working on this

Duplicate of this bug: 2026940
Assignee: ejirooghenekome → fatimohbakare3
Assignee: fatimohbakare3 → ejirooghenekome

Hi, why am I being unassigned…I already worked on it and just about to add a patch

Flags: needinfo?(nikkisharpley)

Oh my gosh, I am so sorry for the mix up. Carry on, Keji, its still yours!

Assignee: ejirooghenekome → fatimohbakare3
Status: ASSIGNED → RESOLVED
Closed: 2 months ago
Resolution: --- → FIXED
Target Milestone: --- → 151 Branch
Regressed by: 2031116
No longer regressed by: 2031116
Regressions: 2031116
QA Whiteboard: [qa-ver-opt-c152/b151]
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