YouTube Unblocker has been blocked for your protection.

Why was it blocked?

The add-on has a mechanism that updates certain configuration files from the developer’s website. This mechanism has a vulnerability that is being exploited through this website (unblocker.yt) to change security settings in Firefox and install malicious add-ons.

Who is affected?

All users who have this add-on installed.

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.