2022: add browser.eme.ui.enabled

for those who want to remove DRM prompts and have no intention of enabling it

user.js

@@ -660,11 +660,13 @@ user_pref("media.peerconnection.ice.default_address_only", true);
  * [NOTE] This is covered by the EME master switch (2022) ***/
    // user_pref("media.gmp-widevinecdm.enabled", false);
 /* 2022: disable all DRM content (EME: Encryption Media Extension)
+ * Optionally hide the setting which also removes the DRM prompt
  * [SETUP-WEB] e.g. Netflix, Amazon Prime, Hulu, HBO, Disney+, Showtime, Starz, DirectTV
  * [SETTING] General>DRM Content>Play DRM-controlled content
  * [TEST] https://bitmovin.com/demos/drm
  * [1] https://www.eff.org/deeplinks/2017/10/drms-dead-canary-how-we-just-lost-web-what-we-learned-it-and-what-we-need-do-next ***/
 user_pref("media.eme.enabled", false);
+   // user_pref("browser.eme.ui.enabled", false);
 /* 2030: disable autoplay of HTML5 media [FF63+]
  * 0=Allow all, 1=Block non-muted media (default), 5=Block all
  * [NOTE] You can set exceptions under site permissions