IDM FireFox Extension

IDM Firefox extension automatically integrates into your firefox browser at the time of installing the IDM software. Although some of us install cracks which allows us to constantly stay glued to a particular old version of the fast download accelerator. Using the latest version of Mozilla Firefox with an old version of IDM does not support integration between the two applications. So therefore, you have to download and install a compatible extension which enables the easy integration of IDM into whatever version of Firefox you are using.
IDM Extension allows you to be able to download Youtube videos with minimal stress.
Click here to find out how to Download youtube videos with IDM

Download IDM Extensions Here now.

To find out how to manually install firefox extensions from a file click here

If you follow all these steps sequencially, you may certainly have installed IDM CC Add-On for all your firefox browsers 12,13,14,15,16,17 . Now just restart your Firefox browser. You are done.