Net Captor allows tab-browsing like FireFox, but is quicker, more secure and fully integrated with IE. Modifying Internet Options, Favourites in one of these 2 browsers instantly keeps up-to-date the other browser.
I found Net Captor to be brilliant. Highly recommend it.
I still use IE for work, updates. I use Net Captor for tab-browsing.
Net Captor is superb. It lets you run several windows, each composed of several tabs of course. Best of all, you can chose to have these tabs to be the same in each window or different from one another.
NetCaptor looks a lot like Avant Browser (which is freeware & ad/spyware free) - click here - it is my favourite along with Firefox - click here. Another popular IE-integrated browser is Maxthon (formerly MyIE2) - click here. G
Have used Firefox since 0.9.2 am now on PR1.0 So versatile - either lightweight no clutter browser, or add as many extensions you want to fully customise to your own preferences. Excellent ad blocker and popup killer. Wouldn't go back to IE now.