I decided to try this add-on as an alternative to Greasemonkey which I've been using for years. The reason is that Greasemonkey (v4.0) stopped working once I upgraded to FF57. This add-on works great with FF57 however, and functions just like GM basically, so it's a great alternative.

好多好用的脚本

Amazingly useful, but a tutorial of all the functions would be helpful.

很好用

goog one

这么好的插件，打五星还需要理由吗？

Awesome!

Could not ask for a better add on.

必备插件，不解释

hao

I love the fact that this is no legacy addon anymore.