Firefox CSS

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Pushing the limits of the Firefox Browser through the use of CSS.

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Post your Firefox UI customizations here!

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Any idea how to do this? (www.reddit.com)

submitted 1 month ago* (last edited 1 month ago) by mobsenpai to c/firefoxcss

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Make firefox look like this?

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[–] bali10050 2 points 1 month ago

You need first find out how do you want to style the website. You can use the devtools menu for that (F12). Then you need to create a userContent.css, and write your css there. I recommend writing your rules for given urls or url-prefixes like @-moz-document url-prefix(www.4chan.org){body{background: #111}} or @-moz-document url("www.4chan.org"){body{background: #111}} so it only has an effect on the websites you want to style.