For those with challenging multiple browser scenarios, Optool is the solution. With the tap of a hot-key, or an ingenious long right-click, a page can be moved from one browser to another with no fuss, no muss. Out of the box, Optool supports and can automatically detect Mozilla, Firefox, Opera, Internet Explorer (multiple installations), Netcaptor, and Netscape. And if that's not quite enough for you (hey, where's Maxthon?!) you can manually configure additional browsers.

Optool is not quite free, although it's close. If you find you use it regularly, the author of Optool requests that you send him a postcard from your location. Hey, that's not too much to ask, right?