Hi. I've noticed similar messages like this after previous Firefox upgrades, but not for the latest. My Firefox ESR was automatically updated to 78.11 on June 1, 2021. Since then I have not been able to access Amazon Prime. The error says: Your web browser is missing a digital rights component. In your web browser’s address bar, type about:addons, press Enter, and then on the left, click Plugins. For the Widevine Content Decryption Module, select Always Activate, and then refresh the video’s page and try watching the video. If the video doesn’t play, go back to Plugins, click the gear icon at the top of the page, and then click Check for Updates. When the plugins have updated, refresh the video’s page, and then try watching the video. The suggestions get me no where. It is already on "Always Activate" and newer updates are available. I tried uninstalling and reinstalling a early version, but this does not work either. I get a message at the top saying that "Firefox is installing components needed to plate the audio or video on this page. Please try again later." "Later" is apparently never. Has any else had this issue? Any suggestions would be appreciated.