The Google Maps Minimap Sidebar for Firefox:
Are you a Firefox user that is constantly using Google Maps? A new Firefox add-on called Minimap Sidebar is a brilliant tool that makes it easy to instantly mash up web page content with Google Maps mapping features. For example you can very quickly map out text-based addresses by copying the address and mapping it from the right-click menu or by dragging the copied text directly to a landing box. Build an entire map by repeating the process for many addresses then add KML links, local search results, directions or jump out and view the map in Google Earth. If you're finding yourself switching between Google Maps and another browser window of non-mapped addresses, this Firefox add-on might be the answer!