diff --git a/mozilla/suite/browser/tabbrowser.xml b/mozilla/suite/browser/tabbrowser.xml
index d091961d478..6dc5219425c 100644
--- a/mozilla/suite/browser/tabbrowser.xml
+++ b/mozilla/suite/browser/tabbrowser.xml
@@ -985,7 +985,7 @@
               // error pages can load their favicon, to be on the safe side,
               // only allow chrome:// favicons
               const aboutNeterr = /^about:neterror\?/;
-              if (!(aboutNeterr.test(targetDoc.documentURI) ||
+              if (!aboutNeterr.test(targetDoc.documentURI) ||
                   !uri.schemeIs("chrome")) {
 
                 const secMan =