Since the release of WebExtension version Greasemonkey became significantly slower when dealing with heavier scripts. If core functionality is getting there (though really slowly) performance is terrible comparing to non web-ext version or Violentmonkey.

FF ESR, Greasemonkey 4.1 - non usable.

Yess

iyi uygulama eklentisi.

açılmıyor

doesn't work
change to tampermonkey and work well

good

Muy bueno

Es muy rapida

FF 56 Greasemonkey 4.1 - pure junk. The Greasemonkey category is gone from add-ons page which means no easy way to order and maintain a large group of scripts. Use version 3.17.

good

No1

hi

thanks

why I can't use GM's API like "GM.setClipboard" ?