So I just gave it a try for this thread and because they updated it but it's still not my style of browser. The fancy animations for Tabs and scrolling are really not my thing, I like a choppy experience because it's better to read and scrolling doesn't take ages.
Now as it's Mozilla (who pretty much are designing the Meta in Web Development) I tried their Developer Tools. They definitely have a couple of really nice features like inspecting animations etc. The JS Console is miles better than Devtools from Chrome and the Network tab looks nicer too.
For usual Browsing I'll probably stick to Chrome but for stuff like debugging I'll definitely be using Firefox a lot more in the future.
Still Chrome is the best. 
