View source for Image tooltips do not work

Most likely, you are experiencing the situation where <code>ALT</code> attributes don't become tooltips when you hover over an image. This is because this way of handling <code>ALT</code> attribute is [http://www.w3.org/TR/html401/struct/objects.html#h-13.8 incorrect].  <code>ALT</code> text should only be shown as an ''alternative'' to the image, not ''as well as'' the image. To have the text display in the tooltip in all graphical browsers, the [http://www.w3.org/TR/html401/struct/global.html#h-7.4.3 <code>TITLE</code>] attribute should be used. Contact the site administrator to have it fixed.

From [http://www.w3.org/TR/html401/struct/objects.html#h-13.8 w3.org]:
<blockquote>Several non-textual elements [...] let authors specify alternate text to serve as content when the element cannot be rendered normally. Specifying alternate text assists users without graphic display terminals, users whose browsers don't support forms, visually impaired users, those who use speech synthesizers, those who have configured their graphical user agents not to display images, etc.</blockquote>

If you want Firefox to show <code>ALT</code> attributes in tooltips, install the [https://addons.mozilla.org/en-US/firefox/addon/1933 Popup ALT Attributes] extension.<br>
You may alternatively install a user script titled [http://greasemonkey-user-scripts.arantius.com/alt-tooltips-for-firefox ALT Tooltips For Firefox] in conjunction with the [http://greasemonkey.mozdev.org/ Greasemonkey] extension.

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