Is this a legitimate upgrade notification - https://coeluredham.org/2846471073544/a9d3dfc41a095a934db75195e49c95e7/5d5293681e064e3369834b38489ba9ef.html
A window opens up periodically asking me to download a critical update.......
Wšě wotmołwy (2)
. 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
That was a good catch. This can help stop those 'alerts';
Go to the Mozilla Add-ons Web Page {web Link} (There’s a lot of good stuff here) and search for a good ad / pop-up blocker.