diff --git a/toolkit/content/license.html b/toolkit/content/license.html
index ee13c8a02e7a..42dcd205ae5e 100644
--- a/toolkit/content/license.html
+++ b/toolkit/content/license.html
@@ -172,6 +172,7 @@
       <li><a href="about:license#growl">Growl License</a></li>
       <li><a href="about:license#jpnic">Japan Network Information Center License</a></li>
       <li><a href="about:license#jemalloc">jemalloc License</a></li>
+      <li><a href="about:license#libffi">libffi License</a></li>
       <li><a href="about:license#hunspell-lt">Lithuanian Spellchecking Dictionary License</a></li>
       <li><a href="about:license#openvision">OpenVision License</a></li>
       <li><a href="about:license#qcms">qcms License</a></li>
@@ -2441,6 +2442,40 @@ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
     <hr>
 
+    <h1><a name="libffi"></a>libffi License</h1>
+
+    <p class="correctme">This license applies to files in the directories
+    <span class="path">js/ctypes/libffi/</span> and
+    <span class="path">js/ctypes/libffi_msvc/</span>.
+    </p>
+
+<pre>
+libffi - Copyright (c) 1996-2008 Red Hat, Inc and others.  
+See source files for details.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+``Software''), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+</pre>
+
+
+    <hr>
+    
     <h1><a name="hunspell-lt"></a>Lithuanian Spellchecking Dictionary License</h1>
 
     <p class="correctme">This license applies to certain files in the directory