Secure Email Certificate

Hi i use Opera Browser (Developer version 25.0.1613.1 under Windows 8.1 64x) and i want to create my email certificate. so i use this page:

but this page probably dont work on Opera. i enter my name, last name, e-mail and password. after i check my e-mail and i click to link nothing happen. Certificate dont install on Opera so i try to use another browser. i run Internet Explorer and under another browser works (i have pop-up window to accept) but when i try to install my certificate from IE i have error that i before use another browser…i try under IE again register my email but i have error that this email is used.

so now i have registered email but i cant install my certificate under Opera and under another browser. can some admin reset my email and i will start create certificate under IE or write what i must do?

edit: ok problem solved i revoke certificate and install again under IE but you cant fix comodo site under Opera :wink: