- Long Description Favelet (drag the previous link to your bookmarks) - "This favelet announces the number of images with longdesc attributes and provides links to the long description file in each case." by James W. Thatcher. Works ubiquitously in Chrome, FireFox, Internet Explorer, Safari, Opera, and iCab.
- Firefox has accessibility API support. As of Mozilla 25 FireFox has native support via the image context
- iCab - native support of longdesc via a
- Long Descriptions in Context Menu - Official Chrome Extension by Dominic Mazzoni. "Right-click on anything with a "longdesc" or "aria-describedat" attribute to access its long description. Right-click on anything with a "longdesc" or "aria-describedat" attribute to access its long description. The HTML standard allows images to have a link to an additional file with a long description with the "longdesc" attribute. In addition there's a proposed new ARIA attribute "aria-describedat" that's similar. Normally these attributes are only exposed to users who have screen readers or other assistive technology installed that knows to look for these. This extension puts an item in the context menu so you can right-click on any element on the page and open its long description. It also gives you the option of adding a colored border to images with a long description so you know when one is available."
- Chrome Longdesc Plugin by Chris Kennish. It "highlights and
provides right-click access to image long descriptions, where
- Opera - native
support of longdesc Versions 10-12.15. Longdesc was exposed by a right click on
the image for which the longdesc has been defined.
- Internet Explorer
(IE) - When used together with assistive technology such as Jaws, IE makes
longdesc accessible to the AT user.
- Netscape 7.0 (rv:1.0.1 Gecko/20020823) supports the longdesc the context menu.
- Home Page Reader has native support of longdesc and is still used in Japan for
longdesc, even though it stopped being maintained years ago.
- SeaMonkey - discloses longdesc
URI via <right-click>/<properties>/Description
The following assistive technology informs users that an image has a long
description, at which point the user has the option of reading the description or
The following authoring tools support the longdesc attribute.