Hi DavidR,

There is a firefox.exe that should be blocked. but that is a variant of the U.K. Gamma Govt. Spyware (also known as FinSpy) also used in the socalled Bundestrojaner version 1, read: http://blog.mozilla.org/blog/2013/04/30/protecting-our-brand-from-a-global-spyware-provider/
and avast detects this variant,

polonus