You've voiced my sentiment exactly. I really wish Firefox was more at the forefront of innovation and development, and there's a lot to criticise Mozilla for, but I wouldn't change it back for Chromium for anything.

I have a completely custom minimal layout with address bar and tabs at the bottom, all the extensions I need, and I don't notice the performance or compatibility differences almost ever, with few rare exceptions. I feel it much more as "mine", and it's a joy to use.