No longer works.

DONT USE it. It's buggy. Interfere Facebook and some other applications.

Facebook messenger doesn't work with this.

I confirm that this addon causes facebook messenger unloadable. THIS IS SERIOUS BUG !!!!!!!!!!!!!!! Don't install this addon if you want to use facebook messanger.

It works basically as intended, but the fact that it prevents Facebook Messenger from working (denies the pop-up window) makes this add-on quite unattractive for me.

Good plugin, but facebook messenger won't work and the comments in facebook often disappear.

No drag links in addons.mozilla.org !!!

無法在 https://addons.mozilla.org 上使用,其他網站都能正常拖拉,不知道是什麼原因

When enabling the add-on, can't load the facebook chat (2018/2/8), also sometime the add-on doesn't work, you have to reload the page.

简洁实用 功能虽然不多 但很稳定

Good, but looks already abandoned. Facebook messenger doesn;t work indeed if you have this plugin on.

causes Messenger.com loading error

Has bad interaction with facebook messenger. This MUST be fixed ....otherwise the add on will go nowhere.

Ignoring that problem....the add on is a godsend. It replaces QuikDrag nicely.

Easy to use and configure......I did notice a tendency to "double up"....I would end up with 2 new tabs open, instead of just the one.

if the facebook thingie goes....I will keep it. Otherwise it will get the flick.

UPDATE Feb 25, 2018. (the caps are intended.......you....the developer of this add on.....have obviously not heard....)
THE BLOODY ADD ON IS USELESS. FACEBOOK MESSENGER WILL NOT OPEN (AND VARIOUS OTHER DRAMAS).....FIX IT OR SHUT THE ROTTEN THING DOWN. EVERYONE USES FACEBOOK, SO YOU ARE SERIOUSLY BEHIND THE TIMES. AS FAR AS I CAN SEE THE FACEBOOK PROBLEM WAS REPORTED HERE WELL OVER 1 MONTH AGO.
COME ON ERIC...STEP UP TO THE PLATE.

((After disabling the add on....just reload facebook and the messenger windows will open))

It is now March 17, 2018.....and this add on is still NOT FIXED. It STILL presents problems with facebook messenger.

All is ok, but trouble with f*cking fb messenger.

In Firefox 58 now is blocking Messeanger !

worked fine for a while .,.. now is blocking Facebook massanger (tested on 2 different pc)

Not compatible with NodeRed Editor.
Block the editor (cannot drag node and impossible to create connections)

Please add Baidu.com as search engine for Chinese user

Facebook doesn't work properly with firedrag 2.0.0. Also does not work with local links in local web page.
... 3 years later and it kills Facebook Messenger in Windows 10 home.

It works sometimes. After firefox started, it doesn't work. I have to open preference of extension and change something (just like poking it to wake it up). After that, it works.