hello, this is a scam tactic that is trying to trick you into installing malware, so don't download or execute this kind of stuff! only download firefox from its official location at mozilla.org - in addition updates are handled automatically by firefox so you don't have to download anything (you can initiate a check for updates in the firefox ''menu ≡ > help ? > about firefox''). you might also want to run a full scan of your system with the security software already in place and different tools like the [https://www.malwarebytes.org/antimalware/ free version of malwarebytes], [https://toolslib.net/downloads/viewdownload/1-adwcleaner/ adwcleaner] & [http://www.kaspersky.com/security-scan kaspersky security scan] in order to make sure that there isn't already some sort of malware active on your system that triggers these false alerts. [[Troubleshoot Firefox issues caused by malware]]

''Brad-Perry [[#question-1129292|said]]'' <blockquote> Binary file (354KB). </blockquote> If you saved the .exe (do not run it) can you please upload it to https://www.virustotal.com/ and provide the link after scan. Also Tyler Downer would like a copy if possible as mentioned in https://support.mozilla.org/en-US/forums/contributors/712056#post-69483