|User Script Authoring|
As of Greasemonkey 4.0, due to limits in the WebExtension API surface, only an embedded editor is available.
The script itself is listed in the first tab.
@resource files will be listed in additional tabs.
Press Ctrl-S to save any changes.
Writing scripts for Greasemonkey is not hard. What can get difficult, however, is working with the quirks and limitations that the script runs under; Some things that work perfectly in a normal web page, copied and pasted directly to a user script suddenly fail. It's important to know how the environment the scripts run in works.