User script or user JavaScript, which made popular by Greasemonkey add-on for Firefox, has been used by many web surfers to customize or change user experience and fix bugs when visiting various websites or web apps. With the tremendous popularity of Greasemonkey add-on in Firefox web browser, other web browsers’ users, including Opera users, may also want to install and run customized user scripts or … Continue reading How to Install Greasemonkey User Script (JavaScript) in Opera