Same here, I was using Firefox on Mac for years, but recently I had to move away from it because it was the most CPU/RAM consuming process on my machine, constantly lagging, hanging, crashing... I'd love to get back, but you guys need to improve the performance at least up to Chrome levels, if not Safari. As other people here, I dont care for builtin Pocket and whatever else, because I can get most of things via plugins - I can't do that for browser performance though ;)
I don't know why it is that way for you. I switched to Firefox on mac exactly for this reason. Safari and Chrome were consuming too many resources. Firefox is nice, fast and stable (for me at least).
