diff --git a/application/palemoon/components/pageinfo/permissions.js b/application/palemoon/components/pageinfo/permissions.js
index c9e999971a..6abb467be5 100644
--- a/application/palemoon/components/pageinfo/permissions.js
+++ b/application/palemoon/components/pageinfo/permissions.js
@@ -268,6 +268,11 @@ function initPluginsRow() {
       if (mimeType == "application/x-shockwave-flash" && plugin.name != "Shockwave Flash") {
         continue;
       }
+      // XXX: Guard against plug-ins that include an empty MIME type
+      // in their list of handled MIME types (e.g. latest Java SE 8 plug-in).
+      if (mimeType.length == 0) {
+        continue;
+      }
       let permString = pluginHost.getPermissionStringForType(mimeType);
       if (!permissionMap.has(permString)) {
         let name = makeNicePluginName(plugin.name) + " " + plugin.version;
diff --git a/application/palemoon/components/permissions/aboutPermissions.js b/application/palemoon/components/permissions/aboutPermissions.js
index 421b65a0ef..b3bcad719b 100644
--- a/application/palemoon/components/permissions/aboutPermissions.js
+++ b/application/palemoon/components/permissions/aboutPermissions.js
@@ -566,6 +566,11 @@ var AboutPermissions = {
         if ((mimeType == gFlash.type) && (plugin.name != gFlash.name)) {
           continue;
         }
+        // XXX: Guard against plug-ins that include an empty MIME type
+        // in their list of handled MIME types (e.g. latest Java SE 8 plug-in).
+        if (mimeType.length == 0) {
+          continue;
+        }
         let permString = pluginHost.getPermissionStringForType(mimeType);
         if (!permissionMap.has(permString)) {
           let permissionEntry = document.createElementNS(XUL_NS, "box");