NOTE: The new version is available on https://addons.mozilla.org/firefox/addon/fox-splitter/ 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 Brows
