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I realize i must be doing something wrong, but that only begs the question of why isn't the documentation so clear that my confusion isn't impossible?
Installed it fine, went into its settings, found mouse gestures page [tho it forces you to stumble about to find that right clicking on a given command triggers its popup field], and tried a few gestures.
Nada. Trails didn't appear, much less promised actions happening.
I have a golden rule that has saved me many hours with craputers [er, computers]: if it doesn't work instantly, forgetaboutit.

Windows 7, Firefox 39 user.

这个评论是针对附加组件的一个早期版本的(2.3.1)。