Chrome downloads and updates in the background with no prompting, you only notice when there is a slight change and a pop-up explaining a new feature, other than that, it was very hands free and manages by itself.
With Firefox was the severe bloat, then constantly getting demanded to be updated with in your face notifications, then you had to wait for 5-10 minutes for it to download, go through the entire install menu, ad-block and no-script being disabled and having to wait for them to update too, it was too tedious and aggressive.
This was around Firefox 4-6 like being mentioned, it might have been sorted now, but the switch already occurred and Chrome is still marginally better.
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