This addon for both firefox and google chrome has been installing itself randomly on lots of systems. Even those that have only gone to a limited amount of websites. 

This malware/addon appeared on my sister's chrome install today. 

Some developers that have workstations that only go on thier company's sites and development related sites have reported this addon installed itself.

There are lots of other reports of this from various users on various configurations. 

Firefox reports:

StackExchange reports:

Reddit thread:

UPDATE!!! I have found an anti virus client that was able to delete the source file where this malware came from called updater.exe and I am an affiliate of them so I am able to give you guys a HUGE discount on this!

You will need to click on this link and you can protect 5PCs for 30 bucks!