My major issue switching to FF is still the lack of a Chrome-style translate function. I live in a country where I don't speak the language, so rely heavily on translating. Copy/pasting into Google translate is too slow for general browsing, and being able to switch between translated and un-translated near instantly means that I can still navigate the site when inevitably the translation breaks the JS navigation. Switching also allows me to very slowly learn the language. I'd love to use FF, but this is still a blocker