Violentmonkey, UserScript support for Opera, just like Greasemonkey for Firefox and Tampermonkey for Chrome. 1. Install scripts from UserScripts.org. 2. Update automatically according to the meta data. 3. Wrappers are imported so that variables from different scripts are separated. 4. Matching rules can be URLs with wildcards or regular-expressions both start and end with a forward-slash (/), chec

