Alt plus the left & right arr0w keys. Backspace also works to go back. http://www.7is7.com/software/firefox/shortcuts.html

Do you mean the back and forward history of a tab or buttons on a web page to go to the next and previous page? * [[Keyboard shortcuts]] * [[Mouse shortcuts]] *NextPlease!: https://addons.mozilla.org/firefox/addon/390 ---- There are other things that need attention: Your above posted system details show outdated plugin(s) with known security and stability risks that you should update. # Shockwave Flash 10.0 r45 # Next Generation Java Plug-in 1.6.0_14 for Mozilla browsers Update the [[Managing the Flash plugin|Flash]] plugin to the latest version. *http://www.adobe.com/software/flash/about/ Update the [[Java]] plugin to the latest version. *http://www.oracle.com/technetwork/java/javase/downloads/index.html (Java Platform: Download JRE)