The internet browser Mozilla Firefox has already rolled out a fix that stops malicious site and spamming you with the authentication request.
These are the alerts usually appear on the fake tech support sites and appear in an endless loop, probably you just leaving for the spammy information regarding technology.
In the past Mozilla has issued a fix about the authentication pop-us, besides that it only blocked those conceived in sub-resources like iframes.
The report from Johann Hoffman, the blocking process now applies to the domain of top-level frame, usually malicious sites looking to your browser.
The other hand this is the latest serious fixes of Mozilla that is rolling out to make the web more secure and annoying less place.
The Firefox 66 most stable release with auto-playing sound and implement scroll anchoring, which stops the web pages jumping as ads and image for better loading speed of particular website when you’re reading.