This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

AVG says Firefox 47.0.1 for Windows has a virus, anyone else having the same problems?

  • 2 replies
  • 2 have this problem
  • 1 view
  • Last reply by stevenco

more options

I am using AVG cloud with the latest AVG updates and shortly after installing the new Firefox 47.0.1 update, AVG keeps notifying me that Firefox.exe is corrupt.

I re-imaged my hard drive to an earlier backup to go back to Firefox 47.0 and will wait to hear before updating Firefox again.

Thank you.

I am using AVG cloud with the latest AVG updates and shortly after installing the new Firefox 47.0.1 update, AVG keeps notifying me that Firefox.exe is corrupt. I re-imaged my hard drive to an earlier backup to go back to Firefox 47.0 and will wait to hear before updating Firefox again. Thank you.

Chosen solution

Firefox 47.0.1 in update or download from mozilla.org are not infected.

Either something on your system has infected Firefox or the most common reason for message is a false positive. A false positive can happen within the first couple days after a new Firefox update and the antivirus then fix it in a definitions update.

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

Firefox 47.0.1 in update or download from mozilla.org are not infected.

Either something on your system has infected Firefox or the most common reason for message is a false positive. A false positive can happen within the first couple days after a new Firefox update and the antivirus then fix it in a definitions update.

Modified by James

more options

Thank you James. I just updated Firefox again and it seems to be okay. AVG updates every 4 to 5 hours so whatever the problem was went away. This can be closed out.