Fix: various fixes

background/usercss-helper.js

@@ -97,28 +97,10 @@ var usercssHelper = (function () {
   }
 
   function openInstallPage(tabId, request) {
-    // FIXME: openURL doesn't reuse old page?
     const url = '/install-usercss.html' +
       '?updateUrl=' + encodeURIComponent(request.updateUrl) +
       '&tabId=' + tabId;
-    const pending = openURL({url})
-      .then(tab => {
-        // FIXME: need a reliable way to check if a new tab is created
-        if (tab.url) {
-          chrome.runtime.onMessage.addListener(function _({method}, sender, sendResponse) {
-            if (method !== 'usercssInstallPageReady') {
-              return;
-            }
-            if (sender.tab.id !== tab.id) {
-              return;
-            }
-            chrome.runtime.onMessage.removeListener(_);
-            wrapReject(Promise.resolve(request)).then(sendResponse);
-            return true;
-          });
-        }
-      });
-    return wrapReject(pending);
+    return wrapReject(openURL({url}));
   }
 
   return {build, save, findDup, openInstallPage};

edit/edit.js

@@ -1977,8 +1977,7 @@ function onRuntimeMessage(request) {
     case 'styleDeleted':
       if (styleId && styleId === request.id || editor && editor.getStyle().id === request.id) {
         window.onbeforeunload = () => {};
-        // FIXME: Scripts may not close windows that were not opened by script.
-        window.close();
+        closeCurrentTab();
         break;
       }
       break;

install-usercss/install-usercss.js

@@ -21,10 +21,7 @@
         break;
     }
   });
-  port.onDisconnect.addListener(() => {
-    // FIXME: Firefox: 1) window.close doesn't work. 2) onDisconnect is fired only if the tab is closed.
-    window.close();
-  });
+  port.onDisconnect.addListener(closeCurrentTab);
 
   const cm = CodeMirror.fromTextArea($('.code textarea'), {readOnly: true});
 
@@ -152,7 +149,7 @@
 
     const externalLink = makeExternalLink();
     if (externalLink) {
-      $('.external-link').appendChild();
+      $('.external-link').appendChild(externalLink);
     }
 
     function makeExternalLink() {

js/messaging.js

@@ -438,3 +438,12 @@ function openEditor(id) {
     openURL({url});
   }
 }
+
+
+function closeCurrentTab() {
+  chrome.tabs.getCurrent(tab => {
+    if (tab) {
+      chrome.tabs.remove(tab.id);
+    }
+  });
+}