Agree(y) , me too the same, but not plugins.I thought I was the only one)
Oddly enough the "heavy" feel of FF is the only thing that's keeping from completely switching to chrome. Chrome feels too fluid if there's a such thing. Maybe it's just because I've been using FF for so long that I'm not used to something else *shrugs*
Other things that kept me from switching is full WYSIWYG editor & a better ad blocker...