Avast Blocking Facebook Message
How to Fix the Problem
To fix this problem just update your Avast engine and virus definition.
Here are the instructions:
- Double-click on the taskbar icon to open Avast
- Click on Settings
- Click on Maintenance
- Click on Update
- Click on "Update engine and virus definitions"
If you are unable to update Avast manually from within the program itself, you may download the update installation file by clicking here.