--- a/toolkit/components/telemetry/TelemetryEnvironment.jsm
+++ b/toolkit/components/telemetry/TelemetryEnvironment.jsm
@@ -866,16 +866,21 @@ EnvironmentCache.prototype = {
 
     return name;
   },
 
   /**
    * Update the default search engine value.
    */
   _updateSearchEngine: function () {
+    if (!Services.search) {
+      // Just ignore cases where the search service is not implemented.
+      return;
+    }
+
     this._log.trace("_updateSearchEngine - isInitialized: " + Services.search.isInitialized);
     if (!Services.search.isInitialized) {
       return;
     }
 
     // Make sure we have a settings section.
     this._currentEnvironment.settings = this._currentEnvironment.settings || {};
     // Update the search engine entry in the current environment.