RightToClick
Stops javascript annoyances such as forbidden right click, forbidden text selection or cascading dialog boxes. Enables right-click, text selection, context-menu, drag&drop and much more where it is disabled by Javascript. RightToClick protects from annoying alert pop-ups, can remove many timer actions and is able to suppress (unusual) click behavior. The highly sophisticated engine also offers options for fine tuning. Finally it's helpful with image downloads (also disabling CSS might be useful here).
