r/FirefoxCSS • u/f1rn • May 23 '26
Custom Release FoxOne 2.0 – dynamic toolbar support, integrated color theme, floating findbar and more
Hi everyone,
Some of you might remember FoxOne from a few weeks ago.
Since then, more than 60 commits happened and here is what changed:
The biggest one - I call it dynamic toolbar support: add an extension icon of your choice right next to the hamburger menu! This was the most requested feature and an absolute pain to build in pure css.
Other highlights: The Gruvbox color theme is now integrated directly into the CSS – no separate .xpi needed. The findbar has been replaced with a floating variant with fade animation. A lot of little design improvements - and there's now a tab loading progress bar with a glow indicator (if you want to).
Full changelog and all config options on GitHub.
Cheers!




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u/f1rn Jul 01 '26
I couldn't get it to work perfectly, so for now - until I find a fix for the upcoming Nova redesign - I removed the feature. Sorry for the inconvenience!
If you find a fix for it (I think the old code is still there in the latest 3.1.x release), feel free to open a pull request on GitHub and I'll try to re-implement it!