I am trying to add information from a contact in my email to an existing contact.cannot list contacts to choos?

I can see the window where it says uploading contacts, but it never opensto let me choose which contact I want to add information

I am trying to add information from a contact in my email to an existing contact.cannot list contacts to choos?
I cannot understand half of what you are saying, but try clearing your browser cache or deleting your history. If all else fails, don't do it.