Mozilla is probably the least likely browser to bundle crapware.
If you're doubting a plugin, could be spyware of some sorts.

(12/03/2012 12:03 AM)gsmoke Wrote:  Edit: i understand now , i have chrome on the machine wich come with the AV program , using it like safe zone.
For what i saw its a minimum set of chrome used in some sand zone or something like this.
And it has the plugin Translate , but yet why it affects FF?

That's worrying, Chrome doesn't come with any AV whatsoever.  You sure this is a legit install?