. Whenever you get a message / popup that software / files need to be updated;

DO NOT USE ANY OF THE PROVIDED LINKS

While this may be a legitimate message, it could also be Malware or a Virus. Anytime you want or need to check for upgrades, go to the website of the True Owner of the program in question. For example, to check out Firefox, go to https://www.mozilla.org {web link}

You can report such a site at; Google Report Phishing Page {web link} which is the same when done while on site by going to Help > Report Web Forgery

Help us safeguard Mozilla’s trademarks by reporting misuse {web link}

For the last eight months, an epidemic of Fake Update Notices have been popping up all over the place. https://support.mozilla.org/en-US/kb/i-found-fake-firefox-update

ruthiesea said

Every once in a while a full screen page comes up stating that I need a critical update. It has the Firefox logo, etc. When I go to the Firefox web site it says that that I'm up to date. Is this a scam?

Is it a random url page a orange background with a large Firefox icon and words "urgent Firefox update" then yes it is indeed a Fake.

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

Firefox updates has not changed really since Firefox 1.5 days ten years ago as the patch is done internally or by download from mozilla.org www.mozilla.org/firefox/all/

This just confirms what I already suspected.

Thanks.