Hi I am a new member and have a question. Every time I shut down my pc, there is an errorreport: XPCOM:Event Receiver. I already uninstalled and installed Firefox with registry cleaning, but that didn't solve the problem. Uninstalling all my software and reinstalling it didn't work either. Even a format C didn't do the job. The error disappears after a while, but when I install or uninstall anything it's back again. Does anybody know a solution?