NHD

@ Marcos: You got a pm...

Solution (in my special case): disabling "add certificate to browser" removed the warning only... After investigating with procmon I found entries from "certimporter-1299.exe" wich was unable to find the Mozilla Firefox Profile's path... (This seemed to occure because the user's name contained a blank and a special german character (ä)). Moving the firefox profile to a path without problematic characters or blanks by editing the profiles.ini solved the problem entirely... So, it wasn't the home edition... THX for the advice "procmon"... CYA all, NHD

Same Problem here on 2 Installations of Windows 7 x64 Home Premium (german). Both Installations are M$ & 3rd party Software fully up to date. On 3 additional Windows 7 Installations (2 Professional & 1 Ultimate, all x64) the problem doesn't occure. If the threadtarter's os is a home edition too, this might be something to look in... No solution yet but I'm gonna try disabling scanning of SSL to see whether the warning disappears or not. If so procmon's gonna be checked...