Hi jwndev,
jwndev wrote:I have installed and used the crypographp_xh instead and it looks working fine in both IE and FF.
Cryptographp_XH 1beta1 shouldn't work with newer versions of Advancedform_XH at all!

As I wrote in
http://www.cmsimpleforum.com/viewtopic.php?f=12&t=3451&st=0&sk=t&sd=a&start=30:
cmb wrote:PS: Cryptographp_XH 1beta1 doesn't work with Advanceform_XH 1beta8! This will be changed in the next version of Crypthgraphp_XH, which will be released ASAP.
And I still have not released a compatible version after more than 6 months!

So I suppose you're using Advancedform 1beta7
<EDIT>earlier versions didn't support alternative captchas at all
</EDIT>. If so: please update to the latest
Advancedform_XH 1beta12. The integrated Captcha works for me on FF 11.0. Recaptcha_XH might work (to be honest: I haven't tested it since quite a while). Cryptographp_XH 1beta1 does not work.
About the neglected Captcha plugins: I still like the idea of having exchangable Captchas (not only for Advancedform_XH, but for other plugins as well). Unfortunately there's very few interest in those. But anyway: I'll release Cryptographp_XH 1beta2 probably tomorrow, and will check, if Recaptcha_XH still works with Advancedform_XH 1beta12.
Christoph