tubbadu

Thanks for the answer! Unfortunately, it says that my device is unsupported... Perhaps it's only available in the desktop version?

For the small tabs, you may try to enable custom stylesheet (userChrome), there are plenty of themes on the web, but if you're looking for something more specific you may edit it yourself, it's very easy. Oh and the default start page is pretty ugly I agree, there are plenty of alternative start pages on the add-on store For the data collection, firefox forks like librewolf should have that disabled by default (I don't have any experience tho)

For me:

• this opinion is different from mine, but I respect it: ignore
• this opinion is different from mine, and I do not respect it (e.g.: racism): downvote
• this opinion is spreading misinformation: downvote
• this comment is an insult to someone, regardless on whether it was "deserved" or not (e.g.: "this is a stupid question"): downvote
• this comment is breaking community rules: downvotes

the shadow text for any file on the desktop

here's some starting point found on the web:

@-moz-document regexp(".*en\.wikipedia\.org.*(?<!#pbm)$"){ body{ color: red !important; }

this is really cool! I wouldn't even need a bookmarklet, I can just manually add it whenever I wish to remove the css

it's not what I was looking for, but it's a great compromise. Thank you very much!

thanks for the answer! I'd like to disable it because if sometimes some website interface fucks things up, I can check if it's my fault or not, so visiting the site in private mode without my css would quickly show me who's fault

my userContent.css file is a bunch of

@-moz-document domain("example.com"){
  body {
    color: red !important;
  }
}

for each website I customized. however, this applies both to normal and private browsing, and I'd like it to apply only to normal browsing

Managed to migrate my friends and family away from WhatsApp

Please tell my how I beg you

This is the only correct answer