Add-ons and Scripts

To enable user JavaScript, useTools > Preferences > Advanced > Content > JavaScript options, and select the directory where you will put your User JavaScript files. Opera will load all files in the specified directory whose names end with .js and will use them as User JavaScript files. If a file name ends with .user.js it will be assumed to use Greasemonkey notation.

Visit UserScripts.org and click the Install button.  Then select  File > Save As and save the file to the directory that you specified for your User Javascript files. 

1. Install GreaseKit
2. Visit UserScripts.org and click the Install button.