title: Allowing tiff/tiff image files in Magento admin product image uploader
body: <p>How do I allow tif/tiff files in the product image gallery uploader in Magento admin? I've already tried updating {Package}_Adminhtml_Block_Media_Uploader::__construct() with the following code:</p>
  
  <pre><code>$this-&gt;getConfig()-&gt;setFilters(array(
          'images' =&gt; array(
              'label' =&gt; Mage::helper('adminhtml')-&gt;__('Images (.gif, .jpg, .png, .tif)'),
              'files' =&gt; array('*.gif', '*.jpg', '*.png', '*.tif', '*.tiff')
          ),
  </code></pre>
  
  <p>Though the uploader browse popup still filters/grays out tif's. </p>
  
  <p>I've confirmed my local class is correctly overriding core. I also located xml config for file extensions in the CMS module, but that obiviously is not related here (right?).</p>