amazon prime video fails to play

[baloan]

When I try to play a video in amazon prime video I will see a notice about my firefox being too old and requiring an update. What should I do to resolve the issue?

[James]

Your UserAgent is being displayed as Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0 as you can see on bottom right of your post.

One possibility is because you manually enabled the privacy.resistFingerprinting Preference in about:config in which one of the things it does is make the UA show as if you have current ESR, in this case Firefox 60 ESR