Bug 1776030 - Prevent tip callback from returning when opened in a new tab - r=adw

Differential Revision: https://phabricator.services.mozilla.com/D167838

browser/components/urlbar/UrlbarProviderSearchTips.sys.mjs

@@ -494,7 +494,8 @@ class ProviderSearchTips extends UrlbarProvider {
       let { documentRequest } = window.gBrowser.selectedBrowser.webProgress;
       if (
         documentRequest instanceof Ci.nsIChannel &&
-        documentRequest.originalURI?.spec != originalUri?.spec
+        documentRequest.originalURI?.spec != originalUri?.spec &&
+        (!isNewtab || originalUri)
       ) {
         return;
       }