User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-GB; rv:1.9) Gecko/2008053008 Firefox/3.0 Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-GB; rv:1.9) Gecko/2008053008 Firefox/3.0 when accessing a private home server with a ssl certificate for localhost, firefox gives the message "Error code: sec_error_reused_issuer_and_serial". It doesn't allow to override this warning and accept the certificate manually. this is nice for normal domain names. there should be an exception for localhost certs. Reproducible: Always Steps to Reproduce: 1. browse a server that has a certificate for localhost 2. set firefox to accept this cert, although it is not signed.... 3. browse another server that has a certificate for localhost Actual Results: errorpage "Error code: sec_error_reused_issuer_and_serial" Expected Results: firefox should allow in this case to override the warning.
read bug 435778, you have to delete the already imported certificate, the error is very clear ... marking invalid because this is a fatal error and that's the reasdon why you can't override it