Site Matcher has been blocked for your protection.

Why was it blocked?

This is a group of add-ons that are being distributed under multiple different IDs and likely being silently installed, in violation of the Add-on Guidelines.

Who is affected?

All Firefox users who have any of these add-ons installed. User who wish to continue using these add-ons can enable them in the Add-ons Manager.

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.