I like it, but... Rated 4 out of 5 stars

This is simple and works well. But Google Chrome has an option - one of its 'selling points' - to surf using a so-called incognito window or tab. This keeps no cookies, passwords, history entries. Windows shortcuts to launching Chrome can easily be made to open the incognito mode by appending
(it must have a space preceding the word) to contents of the Target field in the shortcut's Properties. I imagine that many like me would want a Firefox button that switches over to a stripped-down (more private) browser. So what about an option on this add-on, or just a second similar add-on, that defaults to that incognito mode of Chrome?

This review is for a previous version of the add-on (0.1.5). 

Thanks for the suggestion

Thank you for this suggestion. I have put it on the feature request list, but I cannot promise a special date for this. In the meantime, you might want to consider using Launchy (https://addons.mozilla.org/firefox/addon/81) to launch Chrome in incognito mode.