[Wilya]

It depends on the usage. Users have different habits.

Firefox's memory usage is a bit less predictable (and can get crazy, especially when you leave badly coded js websites open for days in a row) and there are more situations when you say to yourself "I'm leaking memory, I'd better restart", but Chrome memory usage grows faster when you open more tabs.

Plus, Chrome UI is less suited to many tabs: favicons stop appearing beyond around 30 tabs (for me, it's probably machine-dependent), and the omnibar doesn't give you a way to switch to already open tabs by default.

Plus, Chrome autoupdates aren't exactly optimized for low-end configs.