description: 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. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
problem types: Fullscreen could be enabled without displaying the security UI
affected:
{
product: Firefox
vendor: Mozilla
versions:
status: affected, version: < 83
}
{
product: Firefox ESR
vendor: Mozilla
versions:
status: affected, version: < 78.5
}
{
product: Thunderbird
vendor: Mozilla
versions:
status: affected, version: < 78.5
}
