A security issue has been found in Firefox before 83.0 where it was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user.
A security issue has been found in Firefox before 83.0 where it was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user.
https://www.mozilla.org/en-US/security/advisories/mfsa2020-50/#CVE-2020-26953 https://bugzilla.mozilla.org/show_bug.cgi?id=1656741
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