Firefox is now objectively better than Chrome in every way. I would recommend switching moral reasons aside. Chrome's memory management is abysmal. I now get the same shudder when I see someone with chrome on their machine that I used to get when I saw someone running Internet Explorer (which may even be better than chrome now too).
Unfortunately, this is not true. I wish it were. Firefox's JavaScript engine is still slower and large JavaScript apps become sluggish more quickly. Also, I still haven't found a way to let users download files from JavaScript (e.g. through a button click that invokes a function) in Firefox, that wouldn't open another window and in the process close their websocket connection.
This was true (I no longer use Chrome and don’t know if it’s improved in the last two years). Chrome needed enormous amounts of memory compared to Firefox. Using RAM is not an issue as such, but it makes other applications running at the same time miserable (and the user too).