It's not exactly what you suggested, but with HTML5 you can add to the browser's context menu: http://hacks.mozilla.org/2011/11/html5-context-menus-in-firefox-

It's not exactly what you suggested, but with HTML5 you can add to the browser's context menu: http://hacks.mozilla.org/2011/11/html5-context-menus-in-firefox-screencast-and-code/ http://hacks.mozilla.org/2011/11/html5-context-menus-in-fire... http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#context-menus http://www.whatwg.org/specs/web-apps/current-work/multipage/...