Vietnamese Language Pack has been blocked for your protection.

Why was it blocked?
Corrupted files. For more information, please see this blog post.
Who is affected?
Users of Vietnamese Language Pack version 2.0 for all Mozilla applications.
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.