Description of problem:
It seems that certificate / private key generation stopped working. If "generate certificate" in CA control panel is selected (I tried Comodo and StartSSL) some dialog flashes very quickly (it's impossible to read), no error is displayed, but no private key is generated and the generated certificate is unusable.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Generate free Comodo S/MIME certificate on: https://secure.comodo.com/products/frontpage?area=SecureEmailCertificate
2. Click the certificate collect link in the received e-mail
Error that there is no private key to pair the certificate with is displayed, no certificate is stored.
No error, certificate stored.
IIRC it worked correctly in f24. I didn't try with new user/profile. Also both Comodo an StartSSL works correctly in Firefox on Windows 10.
Yes, I can reproduce that. What flashes here is password manager prompt to save password. It also prints on console:
Strict-Transport-Security: The site specified a header that could not be parsed successfully.
It seems to be problem with the page, not the browser. The certificate arrived to the mail eventually (with some delay, like few hours).