H.264 Video Codec Fake has been blocked for your protection.

Why was it blocked?

This add-on exfiltrates user data without consent or control and may be misleading the user into believing this is an add-on by Firefox.

What does this mean?

The problematic add-on or plugin will be automatically disabled and no longer usable.

When Mozilla becomes aware of add-ons, plugins, or other third-party software that seriously compromises Firefox security, stability, or performance and meets certain criteria, the software may be blocked from general use. For more information, please read this support article.