My server uses a self signed server certificate. I have now updated the certificate after it expired. The certificate was originally imported to the firefox browser and I have been using it for 12 months. Now that the certificate is updated, the Firefox browser in Maemo 5 in the N900 won't allow me to browse to my site. I have looked in manage certificates but that only seems to have certificate authorities in it rather than site certificates. How do I remove the old certificate from Firefox in Maemo 5 so it will install the new certificate ?