This is such a useless and bothersome change. First off, forcing it onto the right makes it harder to use my rightfully placed far right button. I don't know where the idea of the far right is the least obtrusive place is to stick an icon so it's out of the way came from, but it's wrong and done by way too many. I've immediately uninstalled extensions I'd otherwise happily use because the programmer decided to force it to a convenient location to make my life easier.

Secondly, why a list of extensions? Most people keep their extensions on screen. The extra few is right there in overflow. Hated Chrome for forcing theirs on me. Usually it doesn't work when trying to add an extension to the toolbar. Now Firefox insists on doing it too.  When did quick and efficient go out the window?

Thirdly, this adds another step to properly manage extensions, like if I have any disabled.