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unsupported operating system for prime video
I have always watched prime video on my computer until just recently . Now I get unsupported operating system. Prime Video titles can't be watched on this device because the operating system isn't supported. For more information, please see Prime Video system requirements
Yet if I go to edge it plays just fine. I have the it set for never remember history and cookies deleted upon closing firefox
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Windows Vista (eof) might be the issue.
Do you have enabled "Resist Fingerprinting" if you check ‘’’Resist Fingerprinting’’’ on the ‘’’about:config’’’ page as this affects the user agent?
- privacy.resistFingerprinting = false
Check that you do not run Firefox in compatibility mode. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window.