Enhanced Middle Click

Middle mouse button is rarely used for anything more than opening and closing tabs. With this addon you can assign additional actions like displaying tab History menu, tab list menu or toggle history/bookmarks SideBar. Version 0.2.2:+ Toggle history sidebar+ Toggle bookmarks sidebar+ Firefox 4.0b8 Version 0.2:+ Tab list menu (can be set in extension preferences)+ Secondary menu on shift + mmb (can be set in extension preferences) Version 0.1:+ Tab history menu.