It'd be cool if the Android version of Firefox got some UI love to bring it back to where it was before they force-updated folks to the "phone only" UI.
I can't count how many times I just wanted to scroll up and ended up refreshing the page.
(I'm not aiming that comment at you, but rather at developers making software less and less configurable)
Since this is open source, everybody should be able to adjust the UI to their liking. However, there are too many obstacles for this to be a valid option. What would be needed to make this possible? I think Firefox could become much more popular if the users could collaborate easily on designing the interface.
Not that I would want it, myself, since my current counter is 48 tabs and I don't want a bunch more hit regions when I'm thumb-browsing.