Captchas
What happened?
When the tab sidebar is expanded, the close/minimize/etc. buttons are positioned correctly. When it is collapsed, they are position way too close to the border of the window. Please see the images below.
Reproducible?
Version
1.8.2b (Firefox 135.0.1)
What platform are you seeing the problem on?
macOS - aarch64
Relevant log output if applicable