Firefox shows Fatal Failure when clicking on embedded URL Link
I use Mozilla Firefox 3.6.11 as my default web browser, on Windows 7. I have a web-site at http://www.over-count.org.uk which has dedicated Pay-Pal “Donate” buttons embedded in html code Links on the home page, so that visitors can click on them to donate to us via Pay-Pal. However, if I'm using Firefox as my web browser, clicking on either of these links only results in a Message appearing stating “Fatal Failure”. If I use Internet Explorer 7 as my browser, and then click on the same Pay-Pal links, both work perfectly, and takes me to my dedicated Pay-Pal “Donations Page” Also, using Firefox and accessing my Pal-Pal account via the 'normal' log-in procedure, there is no problem- it seems to be with linking to the https/ secure server via an embedded link. Is this a known problem with using Firefox, or do I need to have a different html code inserted on my web-site publisher? Any advice or solution would be appreciated, thanks, David Grieve, Scotland.