Just to say that my problem is not with ca-certificates as suggested from above link.
All certificates are correctly installed. My results are received:failed, responses:success, private:success but I have NO responses and NO private on my twitter account (it's brand new), just received tweets. -- Twitter doesn't work at all https://bugs.launchpad.net/bugs/530195 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs