Sure, Firefox has built-in hotkey support, but sometimes it's nice to have a visual reminder. SiteLauncher is a new experiemtnal Firefox addon that does just that.

It's highly customizable - colors, font sizes, and transparency can all be changed. If you'd prefer a wide display, you can use up to eight columns. Don't like rounded corners? Square them off. Your list can also be ordered by hotkey or shortcut title, or you can arrange it manually. To display your list, just press ctrl+space (a la Launchy).

You can also choose to dispay SiteLauncher at startup instead of your home page.

The author has chosen to map ctrl+shift+s as the combo to quick-add your current page to the list, which will cause issues if you've got the Delicious addon installed - that's also the default combination for its bookmark search.

[ via gHacks ]