My favorite feature of Firefox is its
ability willingness to be customized into anything I want through third party add-ons and the built-in user interface customization tool. Firefox 4’s main UI is a big change from Firefox 3, and as it gets very close to release, I see many people asking how to change things back to what they had before.
This post walks through how to customize Firefox’s UI to look like Firefox 3, though I ask one thing of everyone reading it: please give the new defaults a chance. They aren’t right for everyone, but a lot of time and research went into how people use Firefox and I think they’re a step in the right direction. I’m making this post because I’d rather see people using Firefox 4 with a few older UI elements than using Firefox 3 and missing out on all the other awesome improvements because of one UI irritation.