Vanilla Tabless Firefox

Features

• Hide horizontal tab bar.
• MacOS window control buttons.
• Hide unnecessary address bar buttons: bookmark, container context.
• Easy to maintain, widely compatible with Firefox themes.

Setup

Firefox's userChrome.css setup:

1. In Firefox, go to about:config and set toolkit.legacyUserProfileCustomizations.stylesheets to True
2. Create chrome directory in your Firefox profile directory
   • Linux - $HOME/.mozilla/firefox/XXXXXXX.default-XXXXXX/
   • Windows - C:\Users\<USERNAME>\AppData\Roaming\Mozilla\Firefox\Profiles\XXXXXXX.default-XXXXXX
   • macOS - Users/<USERNAME>/Library/Application Support/Firefox/Profiles/XXXXXXX.default-XXXXXXX
3. Copy paste userChrome.css in the chrome directory created in previous step

Other setup:

1. Install Sidebery Firefox extension, for vertical tabs.
2. Install Tabliss Firefox extension, for new tab theme.
3. Customize toolbar and move all extension & other icons in overflow menu space.

Preview

Tested on

1. Windows 11 + Firefox 108
2. MacOS Monterey 12.6.1 + Firefox 108