Please consider turning on send info to Mozilla before posting a question. This helps us help you.

Oh it is a threat. https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware Please run more than 1 scanner as each scans with diff tech. Save your Reports. If choose to do it yourself, google each one as may delete something you want to keep. If need help https://forums.malwarebytes.com/topic/9573-im-infected-what-do-i-do-now/ Post in 1 forum only and wait.

Please uninstall Flash 26 it is a security issue. Flash Player Version: 27.0.0.183 https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only>

Please let us know if this solved your issue or if need further assistance.

coloradored said

I got this pop-up twice today indicating it is an update from Mozilla. I am skeptical and have not downloaded. Is this a valid Mozilla download -- or a phishing scam?

https://support.mozilla.org/en-US/kb/i-found-fake-firefox-update

Does it really make sense for Mozilla to host a Firefox download from a random weird name website when they have the desktop Firefox downloads for Windows, Mac OSX, and Linux served on *.mozilla.org like www.mozilla.org/firefox/all/

Firefox updates are done internally in Firefox or by download from Mozilla.org

So called update files like firefox-patch.js are Fake and being used by scammers as a way to try and trick inexperienced Windows users into running these files without scanning them first as a start to infecting their Windows install.