1699165 - [Proton] Divider spaces are created between tabs upon moving one tab along the tabs bar

Status: RESOLVED WORKSFORME

(Firefox :: Tabbed Browser, defect, P1)

Description

[Timea Cernea [:tbabos][inactive]]

Tested on:
Nightly 88.0a1

Affected Platform:
Windows 7

Steps to reproduce:

1. Have the window maximized and open several tabs
2. Grab one tab from the end of the tabs bar and move it along the bar to the beginning of the strip

Expected Results:
The tabs should reposition themselves accordingly to the grabbed tabs movement without any additional visual elements

Actual Results:
Divider spaces are created along moving the grabbed tab and they instantly disappear after dropping the tab in a place.
Recording with several themes applied:
https://drive.google.com/file/d/1kkSbhAdZ9iXpOgs9AkOtcVk7bM6PGY11/view?usp=sharing

Notes:
Related to the new Proton tabs bar implementation.

Comment 1

[Timea Cernea [:tbabos][inactive]]

Changing severity to S2 given this is easily reproducible with any theme applied and defeats the purpose of the new tabs bar design. Feel free to change the severity if you consider otherwise.

Comment 2

[Tim Nguyen :ntim]

Attachment: Screen recording of issue

Just re-uploading for others, since the drive link was originally not accessible for me.

Comment 3

[Timea Cernea [:tbabos][inactive]]

Hi Romain, please prioritize this Proton bug when you have time, thanks!

Comment 4

[Tim Nguyen :ntim]

Hi Timea, could you please check if this bug is gone with bug 1698032 fixed ?

Comment 5

[Romain Testard [:RT]]

For context 25% of our Windows users run Win7, marking this as P1 under the assumption that it affects all Windows 7 users.
Timea thanks for confirming if the issue is gone with Tim's fix.

Comment 6

[Timea Cernea [:tbabos][inactive]]

Hi Tim and Romain, this is indeed no longer reproducible on my end after the fix from Bug 1698032. Closing this as resolved:worksforme. Thanks!