Log Message:
firefox: Update to 80.0.1

* Change WebRTC dependency to new graphics/libv4l.

Changelog:
Fixed

    Fixed a performance regression when encountering new intermediate CA \ 
certificates (bug 1661543)

    Fixed crashes possibly related to GPU resets (bug 1627616)

    Fixed rendering on some sites using WebGL (bug 1659225)

    Fixed the zoom-in keyboard shortcut on Japanese language builds (bug 1661895)

    Fixed download issues related to extensions and cookies (bug 1655190)