. 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 over a year, an epidemic of Fake Update Notices have been popping up all over the place. https://support.mozilla.org/en-US/kb/forum-response-i-found-fake-firefox-update

NTLS said

1. 3. This email is in reference to, "~ read about a major vulnerability in Intel CPUs so dangerous" I do not feel I am vulnerable to this issue. Can you assist me with this? in part, not the full message. If you wish the full message it can be provided.

4. All references on your site are for FireFox and am on v57.0.4 at this time Win7 Professional SP1 64bit, with all latest updates.

The current Meltdown version does effect Intel CPU's but not AMD CPU's though claims are mixed about AMD in the confusion on each media wave about details.

Firefox 57.0.4 was recently released on Jan 4 for security fixes for Meltdown and Spectre timing attacks. https://www.mozilla.org/firefox/57.0.4/releasenotes/

Windows, Mac and Linux are getting patches also along with applications like Antivirus clients.

FredMcD said

... For over a year, an epidemic of Fake Update Notices ...

This was Not about a fake Firefox update notice but about the recent Meltdown and Spectre timing attacks on CPU's.