--- a/browser/base/content/aboutDialog.js
+++ b/browser/base/content/aboutDialog.js
@@ -485,17 +485,17 @@ appUpdater.prototype =
       return;
 
     if (this.addons.length == 0) {
       // Compatibility updates or new version updates were found for all add-ons
       this.startDownload();
       return;
     }
 
-    this.selectPanel("apply");
+    this.selectPanel("applyBillboard");
   },
 
   /**
    * Starts the download of an update mar.
    */
   startDownload: function() {
     if (!this.update)
       this.update = this.um.activeUpdate;

--- a/toolkit/mozapps/update/nsUpdateService.js
+++ b/toolkit/mozapps/update/nsUpdateService.js
@@ -3018,18 +3018,18 @@ UpdateService.prototype = {
       return;
 
     // If the new version of this add-on is blocklisted for the new application
     // then it isn't a valid update and the user should still be warned that
     // the add-on will become incompatible.
     let bs = Cc["@mozilla.org/extensions/blocklist;1"].
              getService(Ci.nsIBlocklistService);
     if (bs.isAddonBlocklisted(addon,
-                              gUpdates.update.appVersion,
-                              gUpdates.update.platformVersion))
+                              this._update.appVersion,
+                              this._update.platformVersion))
       return;
 
     // Compatibility or new version updates mean the same thing here.
     this.onCompatibilityUpdateAvailable(addon);
   },
 
   onUpdateFinished: function(addon) {
     if (--this._updateCheckCount > 0)