--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -1835,19 +1835,19 @@ pref("identity.fxaccounts.migrateToDevEd
 // On GTK, we now default to showing the menubar only when alt is pressed:
 #ifdef MOZ_WIDGET_GTK
 pref("ui.key.menuAccessKeyFocuses", true);
 #endif
 
 // Encrypted media extensions.
 pref("media.eme.enabled", true);
 pref("media.eme.apiVisible", true);
-pref("browser.eme.ui.enabled", true);
 
 #ifdef MOZ_ADOBE_EME
+pref("browser.eme.ui.enabled", true);
 pref("media.gmp-eme-adobe.enabled", true);
 #endif
 
 // Play with different values of the decay time and get telemetry,
 // 0 means to randomize (and persist) the experiment value in users' profiles,
 // -1 means no experiment is run and we use the preferred value for frecency (6h)
 pref("browser.cache.frecency_experiment", 0);