Version 1.1.7beta14 works on Firefox 22! Couldn't live without Easy Drag to Go+. Too bad the original author doesn't update this version here any more, but, oh, well. Get it here: http://www.firefox.net.cn/forum/viewtopic.php?t=29894
Nice extension but can someone ask the developer to make it when an image is downloaded it shows on the status window? ATM if you drag an image there's nothing to show it's been downloaded unlike Quickdrag.