Real Player for Windows, and lower, click-to-play has been blocked for your protection.

Why was it blocked?
Old versions of the Real Player plugin have serious security problems that could lead to system compromise.
Who is affected?
All users who have these versions of the Real Player plugin. Affected users can visit our plugin check page and check for updates.
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.