One thing that block my migration to firefox is the zoom thing. In chrome I can zoom pages and it stick (I need bigger fonts everywhere). Can't replicate the same with safari or firefox.
In Firefox the zoom levels are saved per website. It has had that feature for a long time.
Or do you want to zoom once and have it zoomed on all websites you visit?
Yeah, this is a major pain in the butt for me as well. I want to only use Safari and Firefox but they really should finally pay attention to this pretty intuitive feature.