Bug 1442762 - Open Pop-up Windows site permissions drop-down list items are too narrow r=dao

Differential Revision: https://phabricator.services.mozilla.com/D67768

--HG--
extra : moz-landing-system : lando

browser/base/content/browser-siteIdentity.js

@@ -1505,7 +1505,6 @@ var gIdentityHandler = {
       let block = document.createXULElement("vbox");
       block.setAttribute("id", "identity-popup-popup-container");
       menulist.setAttribute("sizetopopup", "none");
-      menulist.setAttribute("class", "identity-popup-popup-menulist");
       menulist.setAttribute("id", "identity-popup-popup-menulist");
 
       for (let state of SitePermissions.getAvailableStates(aPermission.id)) {

browser/themes/shared/notification-icons.inc.css

@@ -247,7 +247,8 @@ html|*#webRTC-previewVideo {
   transform: scaleX(-1);
 }
 
-.identity-popup-popup-menulist {
+#identity-popup-popup-menulist,
+#identity-popup-popup-menulist > menupopup {
   min-width: 6.5em;
 }