How does this compare to IE. Curious. I would switch to anything if it gave me more security without losing features and ease of use.
I have Mozilla. It blocks almost all popups, for one thing. I won't use IE except if firefox is really slow.
Firefox has problems with some scripting on some web pages.
Some web pages are written specifically to use IE's built-in features. Firefox has trouble with such web pages.
Otherwise, Firefox is pretty good, and you can customize it with your choice of many 'extensions'. The tabbed browser extension is essential for FR. (I have been using another tabbed, IE-based browser for 2+ years. I could FR without a tabbed browser.)
I go back and forth between Firefox and the other tabbed browser. I do keep IE for those certain pages that won't load in other browsers.
It compares favorably in every single department EXCEPT for proprietary Microsoft technologies (e.g. ActiveX). All the MS techs are security nightmares, anyway.
My uncle used to use IE and was inundated with hijacks and browser spam, to the point where he repeatedly reformmated his entire machine in an attempt to get rid of them. I would get called an average of twice a week to help. This went on for most of a year before I finally forcibly installed Firefox, gave him a 2-minute tutorial, and removed all obvious references to IE.
He has not had a single security-related problem since. Now when he calls me for help (much less frequently), it is because he is learning new things, not struggling to keep from being spammed by porn ads.