Google and Mozilla will certainly add it to their plugin blacklists. Trojan capabilities remote-controlled through a browser, that's a very serious security risk to their users.

Yes for chrome : http://news.ycombinator.com/item?id=4311597 should be same for Firefox, IE might require a little bit more. Not sure how it works in IE8+

In Firefox, open "about:addons" in the location bar, select "Plugins" on the left, then you can disable/remove as necessary.