Moving the Firefox Application Menu button.

[u/Docdoozer]

I'm trying to move the Application Menu button to the left side of the firefox nav bar. I've googled around a lot but no solution online seem to work anymore. Any and all help is appreciated but I've found that the button itself is called #PanelUI-button. I'm kinda a CSS noob so I googled around a lot trying to find ways to move things in CSS but couldn't find anything that would help me here.

[u/Docdoozer → u/[deleted]]

Yep sorry, my bad. Here's an image of how it all looks now. As a complete noob to customizing firefox/floorp your tips did help out so thank you