https://addons.mozilla.org/en-us/firefox/addon/quickdrag/ https://addons.mozilla.org/en-us/firefox/addon/quickdrag/ or as one comment of that extention says:

https://addons.mozilla.org/en-us/firefox/addon/quickdrag/ https://addons.mozilla.org/en-us/firefox/addon/quickdrag/ or as one comment of that extention says: http://www.firefox.net.cn/forum/viewtopic.php?t=29894 http://www.firefox.net.cn/forum/viewtopic.php?t=29894