It's a Linux thing. I have the same problem and when I looked it up I believe I found Amazon just won't stream full quality on Linux browsers for some reason, I forget why exactly but it's very annoying.
Edit: Found this which says if not on Windows or Mac it restricts you to standard definition.
Amazon.com
It's a Linux thing. I have the same problem and when I looked it up I believe I found Amazon just won't stream full quality on Linux browsers for some reason, I forget why exactly but it's very annoying.
Edit: Found this which says if not on Windows or Mac it restricts you to standard definition. Amazon.com