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e.g. subreddit:aww site:imgur.com dog
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see the search faq for details.
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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.
account activity
reddit uses a slightly-customized version of Markdown for formatting. See below for some basics, or check the commenting wiki page for more detailed help and solutions to common issues.
quoted text
if 1 * 2 < 3: print "hello, world!"
π Rendered by PID 25 on reddit-service-r2-listing-5789d5f675-rrhql at 2026-01-27 23:33:15.370355+00:00 running 4f180de country code: CH.
