補充一下
sorry,我只有英文系統...不過應該很容易找出來
以下是其他瀏覽器移除位置
的確移除後會再出現,不過按"編輯"內容,似乎"允許"項目的打勾都消除了

期待有進一步完全移除的方法
Firefox: Tools > Options > Advanced > Encryption > View Certificates > Authorities > find and delete the CNNIC entry

IE: Tools > Internet Options > Content > Publishers > Trusted Root Certification Authorities > find and delete the CNNIC entry

Chrome: Wrench > Options > Under the Hood > Manage Certificates > Trusted Root Certification Authorities > find and delete the CNNIC entry