Opera because it does everything I want straight out of the box and quickly (without add-ons

). Oh and it lets me collect and send my email without going to another program.
On the very, very rare occasion a web site is so badly coded even Opera can't handle it I either avoid that site or goto
FF. Can't remember the last time it happened though.
Oh and I would worry all the add-ons won't work each time I updated FF.