• In addition to the existing custom CSS tweak, add support for downloading CSS mods from VivaldiCustomResources to <Vivaldi installation directory>\css-mods\mods.css.
  • Instead of being injected into Vivaldi HTML, these can be enabled with no file tweaking, so they can be used in Vivaldi installations not tweaked by VivaldiCustomLauncher
  • To enable,
    1. Go to vivaldi://experiments
    2. Enable "Allow CSS modifications"
    3. Got to Vivaldi › Settings › Appearance › Custom UI Modifications
    4. Browse to <Vivaldi installation directory>\css-mods\
    5. Restart Vivaldi
  • As of 2025-03-23, this CSS mod hides the overlay notification that you copied a link or entered fullscreen, which is useless clutter since you already know that, since you're the one who did it