Bug 620472 - Disable unreliable "Work offline" autodetection. r=roc a=beltzner

browser/app/profile/firefox.js

@@ -539,6 +539,9 @@ pref("alerts.totalOpenTime", 4000);
 pref("browser.xul.error_pages.enabled", true);
 pref("browser.xul.error_pages.expert_bad_cert", false);
 
+// Work Offline is best manually managed by the user.
+pref("network.manage-offline-status", false);
+
 // We want to make sure mail URLs are handled externally...
 pref("network.protocol-handler.external.mailto", true); // for mail
 pref("network.protocol-handler.external.news", true);   // for news