Probably useful for some people, but I have doubt about it, as this extensions doesnt seem very popular (no other user). Probably because this list is very easy to learn. Please add some functionality, it's a simple-to-learn list. The search function should not only search for the language, but for the country. For instance, I can find "French" but not "France". If you don't know the official languages spoken in a country, this addon could be useful, but this feature not included yet!