I remember when Firefox 2.0 came out, it was 6 MB. Way more impressive, though, was Opera 9 at 5 MB, which, unlike Firefox, also had a built-in email client, I

I remember when Firefox 2.0 came out, it was 6 MB. Way more impressive, though, was Opera 9 at 5 MB, which, unlike Firefox, also had a built-in email client, IRC client, download manager, BitTorrent client, ad blocker, debugger (Firebug was an extension at the time), sync, and several other impressive features.