--- a/toolkit/components/places/UnifiedComplete.js
+++ b/toolkit/components/places/UnifiedComplete.js
@@ -1077,17 +1077,17 @@ Search.prototype = {
 
   _matchPrefillSiteForAutofill() {
     if (!Prefs.prefillSitesEnabled)
       return false;
     for (let site of PrefillSiteStorage.sites) {
       if (site.uri.host.startsWith(this._searchString)) {
         let match = {
           value: stripPrefix(site.uri.spec),
-          comment: site.title,
+          comment: stripHttpAndTrim(site.uri.spec),
           style: "autofill",
           finalCompleteValue: site.uri.spec,
           frecency: FRECENCY_DEFAULT,
         };
         this._result.setDefaultIndex(0);
         this._addMatch(match);
         return true;
       }