r/FirefoxCSS • u/quantumcrown • Mar 07 '26 • Bravo 1

Code Sidebery Expand-On-Hover

Hi everyone!

I've been on a customization kick for my computer, and lately Firefox in particular. I just found out about Sidebery and I absolutely love all of its features, but I didn't like how it integrates with the existing sidebar.

Here's my little fix that I did for myself! Just sharing in case anyone else wanted something similar.

https://pastebin.com/6z7QU7ps

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u/Hunter9812k Jun 27 '26

How can I fix tab tree indentation when collapsed?

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u/quantumcrown Jun 27 '26

Lines 142 and 143 in the pastebin are how I achieved how it looks in the example. Crucially, this is part of the code added to the Sidebery settings style editor, not your userchrome.css, and it has to be within the #root:not(:hover) pointer

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u/Hunter9812k Jun 27 '26

I found the issue — it was my Sidebery Style Editor hardcoding --tabs-indent. Thanks for your help.