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what is the patch js and how do i stop it from poping up

  • 4 replies
  • 1 has this problem
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  • Last reply by James

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periodically get full screen pop up wanting me to download this patch. I suspect it is something i don't want on my computer... virus or malware. only shows up on firefox browser 47.01

All Replies (4)

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It's an infected ad offering a false Firefox update which is in fact a malware. Don't download it and if you have downloaded it, don't execute it in Windows.

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is there a way to keep it from recurring on my computer? thanks

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Nope, it's offered by some ads hosted on variou websites. The websites should fix the issue with the advertising companies they use.

On your side, if you are using an AV with virus definitions up-to-date (like Microsoft Security Essentials) and you download the malware accidentally, the AV should remove it.

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If you mean you are getting a random name website page claiming to have a so called urgent update for Firefox and a prompt to download a fake firefox-patch.js file. The random name of the website alone should raise a flag that it was not legit.

This is not from Mozilla or the Firefox web browser. The fake firefox-patch.exe and firefox-patch.js files can install things like trojans, viruses, unwanted software or to download additional stuff onto Windows based on past reports if the user runs them.

The Firefox updates are done internally in Firefox (with a .mar type of file) whether on Windows, Mac OSX or Linux or by download from mozilla.org like say www.mozilla.org/firefox/all/

You could try using a adblocker extension like uBlock Origin to block theses fake ads if you keep getting them. https://addons.mozilla.org/firefox/addon/ublock-origin/

Unfortunately this has gone on for several weeks now with one or two new sites reported almost everyday. https://support.mozilla.org/en-US/forums/contributors/712056/ and https://support.mozilla.org/en-US/forums/contributors/712075