Open Bug 1988162 Opened 8 months ago Updated 2 months ago

Dragging tab from tab list into space between group and tab incorrectly adds it to the group

Categories

(Firefox :: Tabbed Browser, defect)

Firefox 144
Desktop
All
defect

Tracking

()

Tracking Status
firefox144 --- affected

People

(Reporter: mercichao, Unassigned, NeedInfo)

References

(Blocks 2 open bugs)

Details

Attachments

(1 file)

Attached video record.mp4

Steps to reproduce:

Initial Setup:
Layout from left to right: Tab A, Group 1, Tab B

Case 1:
Action: Drag Tab A from the tab list and drop it between Group 1 and Tab B.
Result: Tab A is unexpectedly grouped into Group 1.

Case 2:
Action: Drag Tab B from the tab list and drop it between Tab A and Group 1.
Result: Tab B is unexpectedly grouped into Group 1.

Actual results:

As mentioned above.

Expected results:

The dragged tab should not be grouped unless there is a clear visual cue indicating it will be.

Component: Untriaged → Tabbed Browser

I was able to reproduce case1 on Win11x64 using FF build 144.0a1(20250911162114) using steps from description. Case 2 is not always reproducing for me, most probably it depends were the tab is dragged.
Marking issue as new for engineering input. Thank you.

Status: UNCONFIRMED → NEW
Ever confirmed: true
OS: Unspecified → All
Hardware: Unspecified → Desktop

The severity field is not set for this bug.
:dao, could you have a look please?

For more information, please visit BugBot documentation.

Flags: needinfo?(dao+bmo)
Flags: needinfo?(dao+bmo) → needinfo?(sthompson)
Depends on: tabs-dnd, tab-groups
No longer depends on: tabs-dnd, tab-groups
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