description: When a new protocol handler is registered, the API accepts a title argument which can be used to mislead users about which domain is registering the new protocol. This may result in the user approving a protocol handler that they otherwise would not have. This vulnerability affects Firefox < 63.
problem types: Spoofing of protocol registration notification bar
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 63, status: affected, version: unspecified, versionType: custom
}