diff --git a/BrowseWebsitesWithoutLoggingIn.txt b/BrowseWebsitesWithoutLoggingIn.txt
index e575a15c2..562a8915f 100644
--- a/BrowseWebsitesWithoutLoggingIn.txt
+++ b/BrowseWebsitesWithoutLoggingIn.txt
@@ -60,5 +60,5 @@ ooopic.com###public-mask-login
 ! Reddit
 reddit.com##.listingsignupbar.infobar
 
-! Stack Exchange
-stackexchange.com,askubuntu.com,serverfault.com,superuser.com,mathoverflow.net,stackapps.com,##.js-dismissable-hero:has-text(Sign up)
+! Stack Exchange and related sites
+stackexchange.com,askubuntu.com,serverfault.com,superuser.com,mathoverflow.net,stackapps.com#?#.js-dismissable-hero:-abp-contains(Sign up)