Prime video asking to activate widevine cdm in plugins, but can't find widevine CDM @ about:plugins. What rto do.
I am trying to play a video from amazon prime. It gives me a message asking me to go to plugins and tick on always active for Widevine CDM. But when I follow the steps there is no Widevine CDM to be found. What do I do.
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This may be your problem,
Firefox v52+ disables all plugins except for Flash Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work? {web link}
Install Older Version Of Firefox {web link} Be sure to read everything here.
If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.
You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements