A GNOME👣 theme for Firefox🔥 with personal preferences
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README.md

Firefox GNOME Theme

A GNOME theme for Firefox 60+.

This theme follows lastest GNOME default gtk theme adwaita

Screenshot of the theme

Description

This is a bunch of CSS code to make Firefox look closer to GNOME's default theme.

The master branch track current Firefox and GNOME stable.

Installation

Manual installation

  1. Go to about:support in Firefox.
  2. Application Basics > Profile Directory > Open Directory.
  3. Create a folder named chrome.
  4. Copy userChrome.css file and theme folder in chrome.
  5. Go to about:config in Firefox.
  6. Search for toolkit.legacyUserProfileCustomizations.stylesheets and set it to true.
  7. Restart Firefox.
  8. 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.
  9. Be happy with your new gnomish Firefox.

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.

Also you can inspect any GTK3 application, for example type this into a terminal and it will run Epiphany with the GTK Inspector, so you can check the CSS styles of its elements too.

GTK_DEBUG=interactive epiphany

Feel free to use any parts of my code to develop your own themes, I don't force any specific license on your code.

Credits

Developed by Rafael Mardojai and contributors. Based on Sai Kurogetsu work.