this post was submitted on 30 Nov 2025
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How to automatically reload user userChrome.css? (lemmy.world)
submitted 1 month ago by TheTwelveYearOld@lemmy.world to c/firefox@lemmy.ml
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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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[–] xhduqetz@lemmy.ml 4 points 1 month ago

I've found that the easiest way to live debug userChrome.css is to:

  1. Open the browser toolbox,
  2. Go to the style editor tab,
  3. Write userChrome in the search box to find it,
  4. Write CSS directly into the browser toolbox integrated editor.

The integrated editor reloads CSS changes as you write, even without saving.