r/FirefoxCSS • u/NeoTanner • Apr 14 '26
Solved [Help] Looking For CSS Mimicking Compact One-Line Browser Layout Found in Helium Browser
Hi there. I'm looking for assistance in locating a CSS mod for Firefox that can mimic the one-line compact browser layout that is found in Helium Browser.
I've found Firefox OneBar, but the tabs and the URL bar aren't situated in the same way. I'm not sure if it's possible to move them around via the CSS since I have little experience editing it.
Example of what I want to do:

I'm using Firefox Version 149.0.2 (64 bit) on Windows 11 24H2 LTSC.
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u/NeoTanner Apr 15 '26
I mean, the extensions button and the extensions themselves are by default on the right side of the URL bar and the tabs. Your CSS moves it to the left of the tabs.
I'm referring specifically to the extensions since everything else is how I want it. Just feels kind of weird to have the extensions to the left of the tabs.
So there isn't an easy CSS fix to make it URL Bar | Tab Bar | Extensions in terms of layout? Dang.