1 GB == 1024MB
I was talking about downloading. But you don't critisize my other points, sadly..
it is a matter of preferences. Agreed. But Opera is just better. If it isn't, than
The only thing "better" about Mozilla is that it's free and open-source.
Opera also handles downloads neatly (it even already begins the download while you're chosing if you want to "open" it or in what folder you will save it.
Opera's history is good, though I never use it, and the Window > Closed > .... trick is very handy.
Opera doesn't need extensions, because everything's already included. My W3-dev menu is very nice, though
I don't know if it's possible to create your own features with Opera, through extensions, but I don't really see need for it anyway
As I said, the only thing better about Mozilla is IMO that it's open-source and free.