You don't need to be sorry, this is the OPs fault and not yours.

This is the reason you should not trust these chrome or any browsers extensions. If you want to donwload anything from the internet, be sure that it is trusted and being used by a lot of people. If you don't trust any comments about it, you can ask people or maybe make a thread in the forum or on the Reddit as a lot of people can be asked there and will give you good answers. If you don't trust internet answers, you can make a question or recommendations to your friends, that is easier but sometimes not that effective.