I use Mozilla. Firefox has more cooler shit you can do with it, extensions, etc.... but in Mozilla you can have tabs setup in the personal tool bar such as forums, shopping, news...and it will open up all the web sites in that bookmarked tab.
Firefox had more hassle doing this as you had to hold down the shift key when clicking on the tabs in that toolbar. I found this annoying whn your laying back in the chair just mindlessly surfing.