Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Firefox regression (USN-4717-2)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4717-2 advisory. USN-4717-1 fixed vulnerabilities in Firefox. The update caused a startup hang in some circumstances. This update fixes the problem. We...