I see a lot of talk about how to disable this addon, but not a single reply about how to uninstall this spyware.
You are an antivirus company selling an antivirus and anti spyware product and yet you install addons on people's computer WITHOUT notifying them or asking permission first and yet you want people to use your product to stop anyone from installing addons and other malware without asking permission (something you just did).
On top of that, this is a product that STEALS commissions from hard working affiliates around the world.
I have been a very loyal Avast user for many MANY years and have recommended your product to clients for many MANY years, but that just ended today!
Since this addon just showed up today for the first time, I figured you have recently just done another push of this to people.
It's disgusting that a company claiming they are to be trusted does this and completely ruins the trust of it's users to install ANY THING without permission.