I started using Firefox a few years back, to keep the incidence of virus attacks to a minimum, as IE was a much more likely target. However, I have found that some merchandise web sites that use Java Script in the checkout process don’t work well (some don’t work at all) with Firefox. I reluctantly shifted back over to IE (9) and so far, I’ve been happy with the results. It seems a bit faster than Firefox (14). I’m curious to see if Version 15 will solve the aforementioned Java Script issue, and speed up Firefox to match IE 9.
If you liked Firefox, give Chrome a try. It is faster than IE and now has most of the extensions like Adblock that Firefox has.
I only use Adblock on liberal sites like the NY Times and Washington Post, so I am not subsidizing them by being able to see any of their ads. On conservative sites or sites I like, I allow the ads to show as a sign of support, and click on some of them . One conservative site, DailyCaller.com has such intrusive ads (flashing and interrupting articles) that I block the aids there. But that is the only conservative site that I give the AdBlock treatment.