About a year ago I installed that browser and had nothing but trouble with it.
Some pages took forever to load(and I have DSL)
The biggest problem I had with it was 1/2 hour after installing it, my computer crashed and when I rebooted , a message from my avg virus scan said I had 1267 viruses on my computer.
That is not a misprint, 1267 viruses.
I ran avg, got rid of the viruses and uninstalled firefox.
About three months ago, I thought I would install it again.
I did, and this time, withouit going to any web sites, avg detected 1200 viruses on my system.
I imediately uninstalled the firefox, and have never had a problem since.
I have asked others about this and on one of my message boards, someone else had a similar experience with firefox.
Bob