Hiya John
Yah, I know everyone and their pet rat uses FF these days, either that or IE cause they simply don't know any better (yet), but that is a BIG number of d'loads for a single day isn't it. I wonder what the previous record was and what program held it, besides a Win Update that is. I guess a quick search is in order soon..
I've also tried em all John, or the major ones anyway. I used Opera side by side with Avant for awhile a few years back but I always seemed to find more usefulness in Avant than the others I was trying, so it's stayed my main browser for ages now. I've gone Opera, Slim Browser, Amaya, Phoenix, Dillo, and some others I forget the names of now...probably just as well because they were pretty forgettable.
I Love Avant still and if I had the time (or the talent) I'd make my own skin and stick with it but I wanted to give FF another shot. I may still go back to Avant, I'm not sure yet because I think it still has more usability features than FF does ATM and you don't have to search thru 25 pages of plug-ins to get them either.
One thing that does get annoying with it tho is that the developer seems to release a minor build update a week and sometimes more, so you always get prompted to get the new build, but it installs fast and easy and it imports all your settings reliably so it's just a minor annoyance really.