The joke from the previous user who let a review is not good, but that's true that I through that Firefox rated this extension as "suspicious" because of the dev name!

I didn't like this extension, it's all white, with only the (previous) StumbleUpon logo, it's too simple and not aesthetic. Please add color. And by the way, it has nothing to do with this extension, but StumbleUpon is dead, Mix killed it.