On a new install, I was using firefox for a while. I installed chromium. At no point did chrome ask if I wanted to import firefox history, but nevertheless, it autocompletes urls based on things I've visited in firefox. (And definitely not suggestions from google, the completions include localhost:port combos.)
I'm not particularly paranoid, but I think this is a security expectation violation. I do not expect two browsers to be sharing anything. At least part of the reason I'm installing two separate browsers is because I want them to be separate.
