I have a Dell desktop computer with Windows Vista, relatively new computer. The computer is RARELY used, I myself don't USE it often because I don't live at home. Anyway, the computer has a free version of AVG Anti-Virus and whenever I launch Firefox it tells me it found a threat when opening it (firefox). It says the threat cannot be removed. The file location points to a cookie.sqlite. I uninstalled firefox and GOT the newest version and I made sure I had all the updates from Windows. I did a full computer scan with AVG and it found a BUNCH of similar threats in different cookies. I've removed all the cookies and uninstalled firefox so I'm not sure what's going on.

Any help would be great - if I need to provide any more info. LET me know.

Thanksafter you uninstall firefox go to run, and type %AppData% and look for the mozilla folder,you can delete it if firefox is the only thing from mozilla you have installed. try that and reinstall firefox also make sure avg is up to date program and definitions or try avira it better if you ask me!