I have switched from Internet Explorer to Maxthon. Peter DeBruyn uses it. I think it is spiffy, mainly for the ability to save lots of tabs, and the fact that it does not use much memory (much less than Internet Explorer or Firefox).
Maxthon does not jive all that well with the html area I am now using here at moodle.org since the focus does not seem to switch to image and link popups.
I never seemed to get used to Firefox.
Try Maxthon today.
Tim
Try Avant. I've been using it for two years and love it.
It is actually an IE highly customized and even uses your IE favorites. Many tabs, popup stopper, skins etc.
Avant and Maxthon are I believe similar. An advantage of Avant is that one can open new taskbar windows.