diff --git a/application/palemoon/themes/linux/permissions/aboutPermissions.css b/application/palemoon/themes/linux/permissions/aboutPermissions.css
index f4fd3d0baa..386e167e68 100644
--- a/application/palemoon/themes/linux/permissions/aboutPermissions.css
+++ b/application/palemoon/themes/linux/permissions/aboutPermissions.css
@@ -12,6 +12,11 @@
   padding-bottom: 0.5em;
 }
 
+/* content box */
+#permissions-content {
+  height: 100%;
+}
+
 /* sites box */
 
 #sites-box {
diff --git a/application/palemoon/themes/osx/permissions/aboutPermissions.css b/application/palemoon/themes/osx/permissions/aboutPermissions.css
index 406bb92046..f9a4a88af2 100644
--- a/application/palemoon/themes/osx/permissions/aboutPermissions.css
+++ b/application/palemoon/themes/osx/permissions/aboutPermissions.css
@@ -12,6 +12,11 @@
   padding-bottom: 0.5em;
 }
 
+/* content box */
+#permissions-content {
+  height: 100%;
+}
+
 /* sites box */
 
 #sites-box {