Bug 1442759 - Enable the policy engine by default on Nightly and early Betas. r=mossop

MozReview-Commit-ID: 7PInwkHpkGy

--HG--
extra : rebase_source : 533aa48c0033cc7fda4a178575bc6608d02410b8

browser/app/profile/firefox.js

@@ -1763,3 +1763,7 @@ pref("browser.chrome.errorReporter.logLevel", "Error");
 // URL for Learn More link for browser error logging in preferences
 pref("browser.chrome.errorReporter.infoURL",
      "https://support.mozilla.org/1/firefox/%VERSION%/%OS%/%LOCALE%/nightly-error-collection");
+
+#ifdef EARLY_BETA_OR_EARLIER
+pref("browser.policies.enabled", true);
+#endif