If it is getting reinstalled after you remove it, more than likely another program installed that add-on and is re-installing it.

I don't see an add-on by that name at the Add-ons Mozilla web site, so I have no idea what that add-on is or who made it.

Check the Control Panel > Add / Remove Applications for a program that you don't recognize or with a name like that.

it sounds like malware - please run a full scan of your system with the security software already in place and different tools like the free version of malwarebytes, adwcleaner & microsoft safety scanner.

Troubleshoot Firefox issues caused by malware