|User since||December 30, 2013|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Rated 5 out of 5 stars
Stumble upon is a very good social bookmarking site that helps to get the visitors from USAThis review is for a previous version of the add-on (4.16.1-signed).