this post was submitted on 30 Nov 2025
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How to automatically reload user userChrome.css? (lemmy.world)
submitted 4 weeks ago by TheTwelveYearOld@lemmy.world to c/firefox@lemmy.world
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Basically, whenever I edit firefox-profile-path/chrome/userChrome.css, I want firefox to automatically apply the file again. The only posts I found on this are old and not straightforward. I'm wondering what currently works.

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[–] wallybeavis@lemmings.world 2 points 4 weeks ago* (last edited 4 weeks ago)

The only way I know of, is to restart Firefox. If you're concerned whether or not FF is picking up your changes (I always forget which profile directory is being read (AppData vs Local) on windows) you could try something like this:

/*** uncomment below to verify userChrome.css is being read by turning the taskbar red /
/ #nav-bar{ background: #f00 !important } ***/

Just uncomment the 2nd line, restart FF with your changes, and comment it out once you're done