I think his was not a Firefox update you downloaded, but a piece of malicious software you have inadvertently downloaded from a site called http://ffftp.co.cc/ which is impersonating Firefox.

I discovered this myself when my Zonealarm firewall requested permission for "Golds" to access the internet. Golds??!! However I couldn't find a file with this name installed on my computer.

You should delete the file you downloaded and certainly do not allow internet access to any suspicious program. You should also scan your PC immediately for any virus, malware, etc.

Best of luck.

thank you m8,but i downloaded from official site i think( http://www.mozilla.com/el/ [the greek mozilla..]).i will folow your advice.btw when install the version 3.6.10,the firefox working great.when i make the update,i have the same story.