cor-el said Are you already using CSS code in userChrome.css for the Tab bar&nbsp;? I have 3 pages

cor-el said

Are you already using CSS code in userChrome.css for the Tab bar ?

I have 3 pages of code to fix a myriad of issues introduced gradually in various versions of FF. That does include fixes for the Tab bar, also I don't even remember which part of the code does what anymore...

jscher2000 said

For example: https://www.reddit.com/r/FirefoxCSS/comments/s1lno2/how_to_remove_active_tab_white_outline_after_v96/

That did help, thank you.