1945251 - tab group of two tabs and left one selected: Ctrl+T opens new tab to the left but should be to the right (browser.tabs.insertAfterCurrent = true)

Status: RESOLVED DUPLICATE of bug 1945264

(Firefox :: Tabbed Browser, defect)

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Firefox 136.0a1 20250131051218 on Windows 10

1. In an existing window with some tabs, a tab in the middle of the visible tab strip got dragged to the tab left to it and a tab group created.
2. The left tab was active.
3. Ctrl+T had been pressed.

Actual result: New tab opened to the left
Expected result: New tab to the right (in my opinion as part of the tab group between the left and right tab of the group but that is likely out of scope here).

Comment 1

[Dão Gottwald [:dao]]

Hey, is this also with browser.tabs.insertAfterCurrent = true like in bug 1945264? If not, could you perhaps attach a screen recording? We're having a hard time understanding what's going on here and can't reproduce atm.

Comment 2

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Attachment: tab group - new tab opened left of it.mkv

Yes, this is with browser.tabs.insertAfterCurrent = true.

Comment 3

[Dão Gottwald [:dao]]

I guess bug 1945264 might fix this.