So, how painless is the transition from heavily customized and extended Firefox Developer Edition to Waterfox? Do I lose CSS support for multi-row tabs or compatibility with any extensions attained from the Mozilla store?
I already don't maintain a Mozilla account or use any form of syncing, so "losing" that won't matter.
EDIT: it's completely fucking painless. I installed Waterfox, then copied all the stuff in my Firefox profile folder into the Waterfox one. That's it.