Easy and Accessible Rated 4 out of 5 stars

StumbleUpon is a neat, efficient and handy app. As a Tumblr blogger, the Firefox StumbleUpon app provides a useful and quickly accessibly StumbleUpon button which which is unavailable on most other browsers. The tool bar is highly customisable and easy to use

This review is for a previous version of the add-on (4.11.1-signed).