Thanks, marty2010. There is a spate of these fake sites with fake updates which unfortunately can be very damaging to your system.

If you check your history, can you tell what site you were on just before the page appeared?

The prevailing theory is that an ad network is spreading "malvertisements" so one possible workaround is to use an ad blocker like Adblock Plus or uBlock Origin.

Finally, if you do accidentally download either firefox_patch.js or firefox_patch.exe, don't click them on the downloads list because that will run them. You can right-click > Open Containing Folder and that should display the file highlighted so you can press the Delete key to remove it from your system.

Hello,

I am sorry that your having this issue. Pleasedo NOT download FireFox other than our website. To help remove this pop up please can you try this Click here for removal

Thanks, -tw

Oh, forgot to mention, Firefox's malware filter is having a hard time keeping up with the growing list of new sites. You can report your experience on the following page to help grow the list:

https://www.google.com/safebrowsing/report_badware/

Thanks for the information. Really appreciated.

I did not download it. The first time I seen it I turned UAC on highest level. Then I got the popup again .. Did not download.

Then I posted here.

I will read (print) your instructions and follow / do them now...

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.

jscher2000 said

Oh, forgot to mention, Firefox's malware filter is having a hard time keeping up with the growing list of new sites. You can report your experience on the following page to help grow the list: https://www.google.com/safebrowsing/report_badware/

Ok,

I will report when I have additional information ..thanks.