Firefox Safari theme

A MacOSX Safari theme for Firefox 80+

This is a bunch of CSS code to make Firefox look closer to MacOSX Safari theme.

Based on https://github.com/rafaelmardojai/firefox-gnome-theme

Installation

Run the following commands in the terminal:

./install.sh

Usage: ./install.sh [OPTIONS...]

  -m, --monterey
   Install 'Monterey' theme for Firefox and connect it to the current Firefox profiles

  -a, --alt
   Install 'Monterey' theme alt version for Firefox and connect it to the current Firefox profiles

  -A, --adaptive
   Install Firefox adaptive color version...

  -e, --edit
   Edit 'WhiteSur' theme for Firefox settings and also connect the theme to the current Firefox profiles

  -r, --remove, --revert
   Remove themes, do the opposite things of install and connect

  -h, --help
   Show this help

if you want to edit the style then:

Run ./install.sh -e

if you want to use Monterey style then:

Run ./install.sh -m

if you want to use Monterey alt style then:

Run ./install.sh -a

MacOS and Windows version

AdamXweb - WhiteSurFirefoxThemeMacOS: https://github.com/AdamXweb/WhiteSurFirefoxThemeMacOS

Manual installation

1. Go to about:support in Firefox.
2. Application Basics > Profile Directory > Open Directory.
3. Copy chrome folder Firefox config folder.
4. If you are using Firefox 69+:
   1. Go to about:config in Firefox.
   2. Search for toolkit.legacyUserProfileCustomizations.stylesheets and set it to true.
5. Restart Firefox.
6. Open Firefox customization panel and:
   1. Use Title bar option to toggle CSD if is not set by default.
   2. Move the new tab button to headerbar.
   3. Select light or dark variants on theme switcher.
7. Be happy with your new gnomish Firefox.

Enabling optional features

Open userChrome.css with a text editor and follow instructions to enable extra features. Keep in mind this file might change in future versions and your configuration will be lost. You can copy the @imports you want to enable to a new file named customChrome directly in your chrome directory if you want it to survive updates. Remember all @imports must be at the top of the file, before other statements.

Known bugs

CSD have sharp corners

See upstream bug.

Wayland fix:

1. Go to the about:config page
2. Search for the layers.acceleration.force-enabled preference and set it to true.
3. Now restart Firefox, and it should look good!

X11 fix:

1. Go to the about:config page
2. Type mozilla.widget.use-argb-visuals
3. Set it as a boolean and click on the add button
4. Now restart Firefox, and it should look good!

Development

If you wanna mess around the styles and change something, you might find these things useful.

To use the Inspector to debug the UI, open the developer tools (F12) on any page, go to options, check both of those:

• Enable browser chrome and add-on debugging toolboxes
• Enable remote debugging

Now you can close those tools and press Ctrl+Alt+Shift+I to Inspect the browser UI.