Best User Script Extension. Far better than Greasemonkey i used few years b4

必备扩展

can not work in firefox develop edition 79.0b1 (64 bit) macos 10.14.6

henhao

It is very good.

I don't know ANY JavaScript, and this is working great!

Scripts fail to load on several sites unless security.csp.enable is turned off. This makes the browser less secure.
Edit: fixed by developer