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Adaptive Tab Bar Colour

github.com/easonwong-de/Adaptive-Tab-Bar-Colour Firefox Extensions Open-source projectOpen source

Adaptive Tab Bar Colour changes the Firefox theme color to match the appearance of the current website.

Visit Adaptive Tab Bar Colour 20 alternatives
github.com/easonwong-de/Adaptive-Tab-Bar-Colour
Adaptive Tab Bar Colour homepage screenshot

About Adaptive Tab Bar Colour

Adaptive Tab Bar Colour is a Firefox add-on for macOS that dynamically adjusts the Firefox theme colour to match the appearance of the current website, similar to tab bar tinting in Safari. It is an open-source project hosted on GitHub. The add-on works alongside Dark Reader, Stylus, and Dark Mode Website Switcher, but conflicts with Adaptive Theme Creator, Chameleon Dynamic Theme, VivaldiFox, Envify, and any other add-on that modifies the Firefox theme. Custom CSS can control colour transitions, apply the adaptive theme to context menus and Sidebery UI, and integrate with third-party CSS themes using Firefox's standard colour variables. A safety reminder advises distinguishing the browser UI from malicious web UIs.

Key features

  • Dynamically adjusts Firefox theme colour to match the current website's appearance.
  • Compatible with Dark Reader, Stylus, and Dark Mode Website Switcher.
  • Custom CSS can enable smooth or instant colour transitions.
  • CSS can apply adaptive theme to context menus and Sidebery UI.
  • Works with third-party CSS themes using standard Firefox colour variables.
Best for: Firefox users on macOS who want the browser theme to adapt to each website's colours.
Good for
  • Open source.
  • Works alongside Dark Reader, Stylus, and Dark Mode Website Switcher.
  • Customisable through userChrome.css for transitions, context menus, and third-party themes.
Watch out for
  • Incompatible with Adaptive Theme Creator, Chameleon Dynamic Theme, VivaldiFox, Envify, and other theme-modifying add-ons.
  • Some customisation requires editing userChrome.css and about:config.
  • Smooth colour transitions and context menu theming are not natively supported and require custom CSS.

Adaptive Tab Bar Colour at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Platforms
macOS
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026
open sourcemacos

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Adaptive Tab Bar Colour FAQ

What add-ons does Adaptive Tab Bar Colour work well with?
It works well with Dark Reader, Stylus, and Dark Mode Website Switcher.
What add-ons is Adaptive Tab Bar Colour incompatible with?
It is incompatible with Adaptive Theme Creator, Chameleon Dynamic Theme, VivaldiFox, Envify, and any other add-on that modifies the Firefox theme.
How do I apply custom CSS for Adaptive Tab Bar Colour?
Set toolkit.legacyUserProfileCustomizations.stylesheets to true in about:config, open about:support to find your profile folder, create a chrome folder with a userChrome.css file, paste the code, and restart Firefox.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 11, 2026 · How we rank