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Published theme

Lepton(Proton Fix) in Proton UI

🦊 I respect proton UI and aim to fix it. Icons, Padding, Tab Design... Compatibility: V89+

Open original repository
Repository
github.com/black7375/Firefox-UI-Fix
Stars
5,805
Last update
Feb 6, 2026
Submitted as
legacy
Lepton(Proton Fix) in Proton UI screenshot

Tags

uncategorized

Install overview

  1. Open the original repository and read the maintainer's installation notes.
  2. Enable toolkit.legacyUserProfileCustomizations.stylesheets in about:config.
  3. Create or open the chrome folder in your Firefox profile.
  4. Copy the theme files requested by the original repository and restart Firefox.

Ownership note

FirefoxCSS Hub indexes this submission for discovery. The code, license, support, and installation details belong to the original repository.