Split Browser: Because sometimes, tabs just aren't enough
We love us some Firefox. It's open source, relatively exploit free, and extensible, so you can make it whatever you want. It's also not Internet Explorer; So that's a plus.Split Browser is a Firefox extension that allows you to have multiple websites on the screen at once. It also enables some pretty heavy productivity enhancements. For example, there is a tack like icon in the top left corner of each frame, that allows you to scroll simultaneously in several frames at once. And you get all this without opening up a dozen tabs.
