Skype extension has been blocked for your protection.

Why was it blocked?
This add-on causes a high volume of Firefox crashes and introduces severe performance issues. Please update to the latest version. For more information, please read our announcement.
Who is affected?
Users of Skype extension versions below for all versions of 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.