This'll be a messy report, covers a lot.
I booted RPi Mate today and started ffubuntu0.12.04.1. It instantly crashed. I purged ffubuntu0.12.04.1. I reinstalled the official ffubuntu0.16.04.1, that crashed. I purged it, & reinstalled ffubuntu0.12.04.1 again, it works again. But FF still tells google servers that it's a mobile.
Chromium instantly crashes, says 'aw, snap' for both internal & external pages. That seems to be a memory error, see
Tried midori, that shows google drive ok, but the right click activates midori menus, not google drive menus.
So, I'm on a quest for a browser that works on RPi Mate and uses google drive like a desktop.
Hmm..., hint: useragents