Avast provided us with the following statement: Update: The extensions are available again. When you try to open one of the Store URLs of Avast or AVG extensions you get a 'Oops! We can't find that page' error message. It appears that Mozilla removed these extensions from its Store. Neither Avast Online Security or SafePrice, nor AVG Online Security or SafePrice, are returned by the Store currently even though these extensions exist. If you search for Avast or AVG on the official Mozilla Add-ons website, you may notice that no results by these companies are returned.
