For anyone who wants to disable the unnecessary "Add Tab to Taskbar" feature starting with version 143.0, here are the instructions:- about:config- set browser.taskbarTabs.enabled to false- restart FirefoxI disabled that crap right after the update!
type this in your "userChrome.css":/* Firefox 157 – alle Rundungen entfernen */:root {--tab-border-radius: 0px !important;}* {border-radius: 0 !important;}
