It keeps popping up like a virus in Mozilla upjvuvs4.default

When I run a virus scan in C:\Users\Jim\AppData\Roaming\mozilla\firefox\profiles\upjvuvs4.default-1392573684226\prefs.js appears as a suspicious file and deletes it.

If there detect malware in the profile it actually maybe not malware, it may be a false positive.

In some cases, if the vital files are detected the profile they are needed for Firefox because Firefox will try to recreate work.

Some content on profile will be part of Firefox addons, and due to the use of the profile Firefox real contents will vary between facilities. The omni.ja file is a particular prone to trigger alerts. The user.js file is one that is not present by default and is sometimes created by unwanted software.

Please let us know the name of the file, we can at least say what it is. Malware that may affect the profile of course.

May be useful to consider a full scan of your system using multiple tools to update on the presumption that you may have a malware problem.

 Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try these free programs to search for malicious software that work with your existing anti-virus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP, if you do not already have one.

More information can be found in the article troubleshooting Firefox problems caused by malware .

This solve your problems? Please report to us!

Tags: Firefox

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