Lightweight, transparent, and modern Firefox UI compatible with Firefox 143+ on macOS, Linux & Windows
- Windows 11 transparency (Mica & Acrylic)
- Optional macOS-style toolbar layout
- Lightweight, distraction-free, and fast
- Stripped fork for clean performance
- Download the theme ZIP
- Open Firefox β
about:support
β click Open Folder next to your profile - Copy the
chrome
folder anduser.js
file into your profile directory - Close Firefox completely and restart
Tip: Install Zen Internet to enable transparency on all websites.
Set to true:
toolkit.legacyUserProfileCustomizations.stylesheets
svg.context-properties.content.enabled
- Windows:
widget.windows.mica
- Windows:
widget.windows.mica.toplevel-backdrop = 2
Set to false:
sidebar.animation.enabled
- macOS:
widget.macos.native-context-menus
(optional)
Optional macOS-style layout:
gwfox.plus = true
Restart Firefox after changing configuration values.
widget.windows.mica.popups = 1 or 2
browser.tabs.allow_transparent_browser
(may affect websites)
- macOS-style toolbar & compact mode:
gwfox.plus = true
- System-style window controls:
gwfox.plus_sc = true
- Bookmark toolbar at top:
gwfox.plus_tb = true
- Remove window border with horizontal tabs:
gwfox.noborder = true
- Adaptive Tab Bar Colour:
gwfox.atbc = true
(Add-on) - Blur effects (GNOME):
gwfox.bms = true
(Blur my Shell)
Preview.webm
Forked and modified from GWFOX.