description: A mechanism where when a new tab is loaded through JavaScript events, if fullscreen mode is then entered, the addressbar will not be rendered. This would allow a malicious site to displayed a spoofed addressbar, showing the location of an arbitrary website instead of the one loaded. Note: this issue only affects Firefox for Android. Desktop Firefox is unaffected. This vulnerability affects Firefox < 54.
problem types: Addressbar spoofing with JavaScript events and fullscreen mode
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 54, status: affected, version: unspecified, versionType: custom
}