I was today years old when I learned that Firefox supports custom per-domain CSS. Is this new? I thought I had tried a while ago and it only worked globally. 🤔

@-moz-document domain(movq.de)
{
    div { border: 1px solid red; }
}

Either way, I love that I don’t need a plugin for that. 🥳

@movq@www.uninformativ.de LOL I don’t even know roughly how old you are 🤣

@prologic@twtxt.net Good! Germans like Datenschutz! 😂

@movq@www.uninformativ.de Translation? 🤔🤣

@prologic@twtxt.net Data protection, data privacy, privacy protection, something like that. 😅

@movq@www.uninformativ.de Oh yea me too 🤣

@movq@www.uninformativ.de Interesting! I always use uBlock Origin to do that.

@movq@www.uninformativ.de Where in firefox can I set custom CSS?

@sorenpeter@darch.dk In your profile folder (somewhere under ~/.mozilla on Linux), there’s a chrome folder. You can put a file called userContent.css in there.

This also needs the setting toolkit.legacyUserProfileCustomizations.stylesheets to be true.

(I hope they never remove this, it’s super helpful.)