Alright we all use firefox right? And we all have our favorite extensions, and setup of firefox that we can't live witout. I know any time I format or get a new computer at work I have to go and install every single extension all over. Well here's an extension that allows you to install multiple extensions at once. I haven't tried it, but as soon as I get the chance and the need I will (: It's called "Mass Installer" that installs a bunch of extensions at once!