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. 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

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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

This is probably merely about a hotfix to flip the media.autoplay.default pref from 0 (allowed) to 1 (blocked) with the result of disabling auto-play by default.

You can instead modify the pref yourself on the about:config page.

You can look at these prefs on the about:config page to see if these values work for you.

• media.autoplay.default = 1 [0=Allowed, 1=Blocked, 2=Prompt]
• media.autoplay.allow-muted = false
• media.autoplay.enabled.user-gestures-needed = false

For user-gestures-needed you can try false and true to see what works for you.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

• http://kb.mozillazine.org/about:config

Bug 1535667 - Gradual rollout of block autoplay on release 66

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)