I used to think they weren’t as good, but they are good. And I think I’m a pretty serious dev tools user.
BUT, if you want to keep using Chrome dev tools that doesn’t mean you can’t switch to FF. Just de-personalize Chrome (clear you history, sessions, settings etc) and then you’ll stop using it. Say you’re developing and open a new tab to search something on SO: you won’t be logged in on SO. Same goes with any site. So you’ll instantly realize you’re using Chrome to browse and hop over to FF instead.
Seems like a lot of work but it’s not. Maybe I drank the kool aid but I now feel naked browsing with Chrome and try to avoid it as much as possible. I think the important thing is to stop using Chrome for personal browsing.