diff --git a/testing/profiles/prefs_general.js b/testing/profiles/prefs_general.js
index 029854cc6b7..192f9474892 100644
--- a/testing/profiles/prefs_general.js
+++ b/testing/profiles/prefs_general.js
@@ -60,8 +60,6 @@ user_pref("font.size.inflation.minTwips", 0);
 
 // AddonManager tests require that the experiments provider be present.
 user_pref("experiments.supported", true);
-user_pref("experiments.logging.level", "Trace");
-user_pref("experiments.logging.dump", true);
 // Point the manifest at something local so we don't risk it hitting production
 // data and installing experiments that may vary over time.
 user_pref("experiments.manifest.uri", "http://%(server)s/experiments-dummy/manifest");