Hellow, im trying to hide some element in firefox using userChrome. In perticular on left the the “View recent browsing accross windows and devices” how could i do that? Or what is a good resource to know how to learn this myself?

Thank for your time and have a nice day!

  • Ephera
    8·
    11 months ago

    You just have to set toolkit.legacyUserProfileCustomizations.stylesheets in about:config to true.

    Yes, that does say “legacy”, but I don’t think, Mozilla cares to actually remove it. They mainly introduced that about:config flag to reduce startup time for the 99.9% of users that don’t use a userChrome.css file…