Adaptive Tab Bar Color 作者: Eason Wong

What Does The Add-on Do
Every time you open, close, or switch tabs, this add-on changes the theme of your Firefox browser to match the theme color of the website you are viewing – just like how macOS Safari tints its tab bar.


Works Well With
Dark Reader


Incompatible With

1. Firefox under Version 58.0 (released on Jan, 2018)
2. Chameleon Dynamic Theme
3. VivaldiFox
4. Dark Mode Website Switcher
5. automaticDark
6. Envify
7. Midnight Lizard

Safety Warning
Beware of malicious web UI: Please distinguish between the browser’s UI and the web UI, see The Line of Death. (Credit to u/KazaHesto)


For CSS Theme Enjoyers
A CSS theme can work with ATBC, when system color variables are being used. This is an example of an ATBC-compatible CSS theme.


Known Issues

1. “about:devtools-toolbox” might not have the correct color scheme

Thanks to r/firefox subreddit for all the supports and suggestions!
Feel free to star this project on GitHub: https://github.com/YS-Wong/Adaptive-Tab-Bar-Color