I installed the tool, but I can’t log in:
Some users in Mainland China who are using our JetBrains plugin have reported this behavior, which relates to blocked Firebase login. Using VS Code IDE solves this.

from:
https://www.codium.ai/blog/technical-faq-and-troubleshooting

解决办法：

设置页面=>plugins=>点击marketplace 最右边的设置，选择 http proxy setting..

选择你本地的代理即可。