Dear user, hello! I'm happy to answer your questions.

This problem is that the mozilla:pkix module, which is more strict on certificate verification, is enabled in Firefox 31. After this problem occurs, the best solution is to prompt the website to update the self-signed certificate and provide it to visitors, and update . There is a problem with the self-signed certificate in the Oracle console, and there is no better solution for the time being.

But in terms of experience, you may have better results and higher efficiency using splus for database management.

For general user creation, table space creation and other operations, it is sufficient to directly use PLSQL tools.

I hope my answer will be helpful to you. If you have any questions, please feel free to continue to consult us.