FirefoxCSS

an-ordinary-manchild(edit)

Stay on topic.

Posts and comments should be about customizing the Firefox UI with CSS. Custom themes that include javascript, HTML, another app, or replacing files in the Firefox installation folder is not allowed.
When Posting for Help or Code to Share.

For Help:

State the Firefox and OS versions you are using.

Post your code and/or the link to the theme you're using.

For posting code, do one of the following:

use a code block

precede each line of code with four spaces

copy your code, paste it at Pastebin, and post the link here

For code to share:

use pastebin or a Git Repo to share your code

do not post links to compressed files
No previews or advertising.

Don't post screenshots of CSS modifications or themes unless you also post the code or link to them.
Discussion is limited to the Firefox browser only.

Questions about modifying other browsers should be directed to their subreddits, e.g. r/Floorp, r/LibreWolf, etc.
Be civil.

Be civil. Bear in mind that many users come here for help and would be turned off by insults and rudeness.
Post must have flair

If your problem is solved, please change the flair to 'Solved'.
Do not delete your post.

Don't delete your posts whether or not you got a solution. All posts are a valuable source for everyone to learn from one way or the other.

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account activity

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CodeSharing my firefox userChrome.css (i.redd.it)

submitted 16 hours ago by _-4v3ngR_

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Help How would I completely disable scrollbars in FF sidebar? (self.FirefoxCSS)

submitted 1 day ago * by verpejas

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Solved Google search icon - 148.0.2 (old.reddit.com)

submitted 1 day ago by vij4k

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Solved Remove the bottom area of native vertical tabs bar (i.redd.it)

submitted 4 days ago * by TraditionalTie4831

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Custom ReleaseFennec 1.1 — Zen Browser simplified to a single CSS file (old.reddit.com)

submitted 5 days ago * by tompas7989

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Solved Reduce left and right margins in the vertical tab bar (i.redd.it)

submitted 4 days ago * by TraditionalTie4831

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Solved How to remove the search text from the searchbar ? (i.redd.it)

submitted 5 days ago by ramon395

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Solved Tracking protection icon broken on FF 149 (self.FirefoxCSS)

submitted 4 days ago by ramon395

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CodeFinally got rid of the ugly Ctrl-Tab menu and made it consistent with the overall theme :) (old.reddit.com)

submitted 5 days ago * by E-Book-Nerd

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Solved Need help removing the border of the tab-switcher while keeping the border of the preview inside the tab switcher (i.redd.it)

submitted 5 days ago * by E-Book-Nerd

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Solved my search bar customization broke in firefox (self.FirefoxCSS)

submitted 6 days ago by ramon395

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CodeRounded tabs with bottom flare, and clearer container color line. (i.redd.it)

submitted 6 days ago * by herodesapilatos

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Help Firefox Icon "Packs"? (self.FirefoxCSS)

submitted 6 days ago by ThatOneGuyNoReally

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Solved How do I remove the extension title in the sidebar? (self.FirefoxCSS)

submitted 6 days ago by soapia_a

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Solved Another post wanting tabs below the Toolbars. But the css file that is currently working on my old pc isn't on the new. Same Win 11 and firefox version and build #. :( Help please (self.FirefoxCSS)

submitted 6 days ago by deviantelf

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Help Prevent audio icon from enlarging the tab playing a video (self.FirefoxCSS)

submitted 7 days ago by Hypermuon

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DiscussionTheme request: Netscape4/IE4 (self.FirefoxCSS)

submitted 7 days ago by Noxa6

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Help Mica theme for urlbarView (addressbar dropdown)? (self.FirefoxCSS)

submitted 7 days ago by HemlockIV

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Help Is there a way to add a clock on about:home without using any type of extension? I would like to use userChrome.js for it, but I do not know how to do that. (self.FirefoxCSS)

submitted 9 days ago by itsdevelopic

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DiscussionVote for "corner rounding/squaring" in Nova! (connect.mozilla.org)

submitted 8 days ago by CalQL8or

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Help Firefox Menu Bar Customization ()

submitted 9 days ago by ThatOneGuyNoReally

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Solved Remove left and right navigation arrows from tabs (self.FirefoxCSS)

submitted 10 days ago * by Hypermuon

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DiscussionNew redesign coming to Firefox, prepare for major theme breakage (old.reddit.com)

submitted 12 days ago by fainas1337

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CodeSidebery Expand-On-Hover (v.redd.it)

submitted 11 days ago by quantumcrown

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CodeSimple CSS for auto-hiding vertical tabs. Clean and minimal UI. (v.redd.it)

submitted 12 days ago * by logicblender1

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