1701627 - Second last tab is getting wider when a new tab is opened

Status: RESOLVED WORKSFORME

(Firefox :: Tabbed Browser, defect, P3)

Description

[Negritas Sergiu, Desktop QA]

Attachment: tab size.mp4

Affected versions

• 89.0a1(2021-03-29)

Affected platforms

• Ubuntu
• MacOS
• Windows

Steps to reproduce

1. Open firefox.
2. Open a few tabs until the tab navigation appear.
3. Focus on the last tab.
4. From the last tab open a new one with middle click.
5. Observe the size of the focused tab.

Expected result

• Tab should keep it's size.

Actual Result

• Tab size is increased by a few pixels.

Regression range

• Will provide one ASAP.

Additional notes

• Please look at the added attachment for better understanding this issue

Comment 1

[Dão Gottwald [:dao]]

The attached video file is corrupt and I can't seem to reproduce this. Do you still see it? Were you able to find a regression range?

Comment 2

[Negritas Sergiu, Desktop QA]

Hello Dao! I have tried to reproduce this issue again with firefox Nightly 89.0a1(2021-04-16) and it's not reproducible anymore.
I will mark this issue as RESOLVED->WORKSFORME

Thank you!