--- a/toolkit/components/search/nsSearchService.js
+++ b/toolkit/components/search/nsSearchService.js
@@ -20,16 +20,23 @@ XPCOMUtils.defineLazyModuleGetters(this,
   NetUtil: "resource://gre/modules/NetUtil.jsm",
 });
 
 XPCOMUtils.defineLazyServiceGetters(this, {
   gEnvironment: ["@mozilla.org/process/environment;1", "nsIEnvironment"],
   gChromeReg: ["@mozilla.org/chrome/chrome-registry;1", "nsIChromeRegistry"],
 });
 
+const BROWSER_SEARCH_PREF = "browser.search.";
+
+XPCOMUtils.defineLazyPreferenceGetter(this, "resetStatus", BROWSER_SEARCH_PREF + "reset.status", "");
+XPCOMUtils.defineLazyGetter(this, "resetEnabled", () => {
+  return Services.prefs.getDefaultBranch(BROWSER_SEARCH_PREF).getBoolPref("reset.enabled");
+});
+
 const BinaryInputStream = Components.Constructor(
   "@mozilla.org/binaryinputstream;1",
   "nsIBinaryInputStream", "setInputStream");
 
 Cu.importGlobalProperties(["DOMParser", "XMLHttpRequest"]);
 
 // A text encoder to UTF8, used whenever we commit the cache to disk.
 XPCOMUtils.defineLazyGetter(this, "gEncoder",
@@ -120,18 +127,16 @@ const OPENSEARCH_LOCALNAME = "OpenSearch
 
 const MOZSEARCH_NS_10     = "http://www.mozilla.org/2006/browser/search/";
 const MOZSEARCH_LOCALNAME = "SearchPlugin";
 
 const URLTYPE_SUGGEST_JSON = "application/x-suggestions+json";
 const URLTYPE_SEARCH_HTML  = "text/html";
 const URLTYPE_OPENSEARCH   = "application/opensearchdescription+xml";
 
-const BROWSER_SEARCH_PREF = "browser.search.";
-
 const USER_DEFINED = "searchTerms";
 
 // Custom search parameters
 const MOZ_PARAM_LOCALE         = "moz:locale";
 const MOZ_PARAM_DIST_ID        = "moz:distributionID";
 const MOZ_PARAM_OFFICIAL       = "moz:official";
 
 // Supported OpenSearch parameters
@@ -2324,18 +2329,18 @@ Engine.prototype = {
   getSubmission: function SRCH_ENG_getSubmission(aData, aResponseType, aPurpose) {
     if (!aResponseType) {
       aResponseType = AppConstants.platform == "android" ? this._defaultMobileResponseType :
                                                            URLTYPE_SEARCH_HTML;
     }
 
     let resetPending;
     if (aResponseType == URLTYPE_SEARCH_HTML &&
-        ((resetPending = Services.prefs.getCharPref(BROWSER_SEARCH_PREF + "reset.status", "") == "pending") ||
-         Services.prefs.getDefaultBranch(BROWSER_SEARCH_PREF).getBoolPref("reset.enabled")) &&
+        ((resetPending = resetStatus == "pending") ||
+         resetEnabled) &&
         this.name == Services.search.currentEngine.name &&
         !this._isDefault &&
         this.name != Services.search.originalDefaultEngine.name &&
         (resetPending || !this.getAttr("loadPathHash") ||
          this.getAttr("loadPathHash") != getVerificationHash(this._loadPath)) &&
         !this._isWhiteListed) {
       let url = "about:searchreset";
       let data = [];