--- a/testing/profiles/prefs_general.js
+++ b/testing/profiles/prefs_general.js
@@ -228,20 +228,16 @@ user_pref("browser.snippets.syncPromo.en
 user_pref("browser.snippets.firstrunHomepage.enabled", false);
 
 // Disable useragent updates.
 user_pref("general.useragent.updates.enabled", false);
 
 // Disable webapp updates.  Yes, it is supposed to be an integer.
 user_pref("browser.webapps.checkForUpdates", 0);
 
-// Enable debug logging in the tcp presentation server.
-user_pref("dom.presentation.tcp_server.debug", true);
-// Enable debug logging in the presentation core service.
-user_pref("logging.Presentation", "debug");
 user_pref("dom.presentation.testing.simulate-receiver", false);
 
 // Don't connect to Yahoo! for RSS feed tests.
 // en-US only uses .types.0.uri, but set all of them just to be sure.
 user_pref('browser.contentHandlers.types.0.uri', 'http://test1.example.org/rss?url=%%s')
 user_pref('browser.contentHandlers.types.1.uri', 'http://test1.example.org/rss?url=%%s')
 user_pref('browser.contentHandlers.types.2.uri', 'http://test1.example.org/rss?url=%%s')
 user_pref('browser.contentHandlers.types.3.uri', 'http://test1.example.org/rss?url=%%s')