Is there a reason that my Chrome extensions no longer work?
I don't know if this is even something you deal with.
I've tried uninstalling and reinstalling and refreshing a thousand times, but they don't seem to work anymore. There are no checkmarks in the upper right corner anymore either, showing that they're in effect.
What extensions are you referring to? If they are Rdio related, they are probably developed by 3rd parties. Usually on the download page it will have a contact for the developer, you might try getting in touch with them directly.