diff --git a/mobile/android/app/geckoview-prefs.js b/mobile/android/app/geckoview-prefs.js
index f32f2775bcfa..d56a0585c834 100644
--- a/mobile/android/app/geckoview-prefs.js
+++ b/mobile/android/app/geckoview-prefs.js
@@ -82,3 +82,6 @@ pref("media.eme.require-app-approval", true);
 
 // Enable the extension process
 pref("extensions.webextensions.remote", true);
+
+// Enable the Process Priority Manager
+pref("dom.ipc.processPriorityManager.enabled", true);