In what aspects did you find the newer Firefox worse than it was years ago? Aside the dumbing down of the preferences menu, which I deeply dislike but is common

In what aspects did you find the newer Firefox worse than it was years ago? Aside the dumbing down of the preferences menu, which I deeply dislike but is common to Chrome as well, I found not a single thing that would make me switch to Chrome today. Chrome was indeed a lot faster than FF when it came out, there was no comparison at all, but things changed a lot. Just to be clear, I'm not at all a Mozilla fanboy (in fact using Waterfox in place of Firefox where I can) but should I have to choose between Firefox and Chrome I'd have no hesitation. Todays Chrome domination is due exclusively to advertising: inviting users to use your product to surf the web on your start page helps a lot if you're the #1 search engine in the world. edit: privacy considerations aside of course.