Yesterday, the Mozilla Add-ons blog reported thattwo extensions contained nasty trojans that hijacked your PC.

Version 4.0 of Sothink Web Video Downloader contained Win32.LdPinch.gen, and Master Filer contained Win32.Bifrose.32.Bifrose Trojan.

Both add-ons have been disabled on AMO.

Beware! Two More Firefox Malware Extensions Found, with Full-Blown Trojans This Time