Split Browser
This splits the content area of the browser window as you like. It will help you in various cases. For example, to compare multiple webpages, to show a calendar always, and so on.There is some ways to split window. * Choose the "Split Browser to" menu in the context menu. * Choose the "Load in Split Browser" menu in the context menu on link. * Click popup-button on top/bottom/left/right edges of the content area. * Drop links, bookmarks, etc. to popup-button on top/bottom/left/right edges of the content area while dragging.You can split browsers over and over. Status of split browsers are saved, and automatically restored on the next startup.
Supported
versions: Firefox 1.5 - 2.0.0.* ALL
Notes / Comments: Similar extensions: * Split Pannel ( https://addons.mozilla.org/firefox/3275/ ) * Tricky Frames ( https://addons.mozilla.org/firefox/3153/ )
Categories: Navigation, Tabbed Browsing

Overview (small):

Overview (fullsize):

Popup-button to split browser:

Crazy sample - you can split browser infinitely!:
