Adds a Map ... to the context menu
Adds a "Map ..." to your context menu, that maps that address in Google Maps.
Select text, right-click, and "Map ..." will appear in the context menu. Clicking that takes you to a Google Maps page for whatever you selected.
Does nothing else - doesn't add any toolbar icons, weird popups or overlays - it just adds a simple Map item to your context menu.
I realize the icon is one of Google Maps, but it doesn't make much sense to use anything else - this does one thing and one thing only, and it's weird Google didn't already make this available themselves.