[Very] Effective with a Bug [2] Rated 3 out of 5 stars

Since FF 19.0.2, I noticed Firefox would randomly hang completely if there's Amazon/Ebay sites opened along with gmail (not sure if it's the only way that hang FF). Disabling the extension prevents the problem. Too bad, it's currently my favorite currency converter addon ...

This review is for a previous version of the add-on (2.0.4.1-signed).