Fangs extension moving to Mozilla hosting

I discovered that my first post about the Fangs Screen reader emulator add-on was posted on November 22 in 2004. That is more than five years ago. At that time Mozilla hosting for add-ons was pretty rough and I couldn’t work out how to release updates. Alas, I hosted the add-on and updates on my own.

Yesterday I discovered that Mozilla add-on hosting has improved a lot so in the future you will find Fangs there. It should make updating a lot simpler. Version 1.06 adds compatibility with Firefox 3.6.

See Fangs screen reader emulator add-on over at


  1. Craig says at 2010-01-18 18:01:

    I have also tried to install via sourceforge (adding both sf url and ss url to allow list) but it won;t install.


  2. Richard says at 2010-02-03 15:02:


    Which version of which screenreader does Fangs aim to emulate? Do you have a list of the differences between the output of Fangs and screenreaders ‘in the wild’?

    Thanks :-)

  3. Dave says at 2010-02-07 10:02:

    Hi, Thanks for making fangs available I use it for testing the accessibility of the websites I produce.

    One think I noticed is that the link list doesn’t pick up the title attribute in links. So if I use an image for a link, say the company logo linking to the home page, it shows up as blank in the link list. I read somewhere that screen readers will use the title attribute if there is no link text.

    Just an idea for the next version. Thanks again

  4. Maria Schiewe says at 2010-04-11 19:04:

    Dear Peter,

    Thank your for this wonderful extension. One thing made me laugh, though. After outputting the page information and the page title, Fang proceeds with “Internet Explorer”. As Fangs is a Mozilla extension only, it would be great to read the correct application name.

    Kind regards,

  5. Peter Krantz says at 2010-04-12 08:04:

    Maria, that is actually by design. When I built the extension Jaws only worked in Internet Explorer. But nowadays I guess you are right in that it should change.

  6. julie says at 2010-09-21 00:09:

    Does or is this app going to work within Flash apps?

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  8. yash says at 2011-04-12 22:04:

    Will it work in mozilla 4? Mozilla 4 do not support many of old add on’s I am using.

  9. Riya says at 2011-05-16 18:05:

    Is this change will be more accessible and easy to install to all kind of PC’s?

  10. Camela says at 2011-05-17 08:05:

    what is the major difference in using fang and screen reader? Will it work equally well in firefox.

  11. Keya says at 2011-05-17 14:05:

    Does fang have the property of automatic anti virus scanning? What is new in this extension, and how it is superior to mozilla firefox?

  12. Victor Solano says at 2012-07-30 20:07:


    I wonder if the add-on works for Firefox 14.0.1 which is the one I use, cause I just installed it but I can’t pull it out to work, Did I do something wrong?, or maybe there is no support for latest versions?.

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  16. david says at 2014-02-25 12:02:

    Hi great tool. But are there any plans to support html5 and WIA roles?

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Peter Krantz, (remove giraffe).