SiteLauncher

SiteLauncher is an add-on for Firefox that gives you a super-quick and clutter-free way to to open your favorite Web sites using only your keyboard. One special hot key brings up the "Launcher" (see screenshot), followed by a unique key to launch a site. SiteLauncher is especially useful for opening Web sites you use often throughout the day, for example, many people would probably want to add Google, Gmail, Facebook, and Twitter to SiteLauncher - what sites to include is entirely up to you.