had to finally switch to tampermonkey. i migrated from greasemonkey following the user script breakage after their 4th version update, now it seems that violentmonkey followed suit, resulting in many scripts not functioning anymore.
also their privacy statement gave me the creeps..

Privacy nightmare. Avoid like the plague if you are privacy concious.

安卓下好像没有用

it's best script control addon

They are collecting "certain personally identifiable information" and moreover:
"We may employ third party companies and individuals to facilitate our Service, to provide the Service on our behalf, to perform Service-related services or to assist us in analyzing how our Service is used."

This kind of behaviour is unacceptable for any privacy conscious person. If you want to collect any user data you should make it opt-in. Most Firefox users care about their privacy - that's the prime reason they use it.