Chrome control repeatedly fails with “Invalid signature” on macOS

What version of the Codex App are you using (From “About Codex” dialog)?

26.818.61809

What subscription do you have?

ChatGPT Pro

What platform is your computer?

Darwin 25.5.0 arm64 arm

What issue are you seeing?

Feedback ID: 01a02f0d-f810-7183-a7a7-cc241fe4418c
ChatGPT can read TradingView pages but cannot click, navigate, or switch tabs. Reinstalling ChatGPT, the Chrome extension, and reconnecting CDP only restores control temporarily. The session reports: “Invalid signature (code or signature have been modified).”

What steps can reproduce the bug?

Feedback ID: 01a02f0d-f810-7183-a7a7-cc241fe4418c

What is the expected behavior?

ChatGPT should maintain a stable connection to the Chrome extension and be able to click buttons, navigate pages, open and switch tabs, and interact with TradingView without repeatedly losing browser-control access.

Additional information

Related issue: #39836 reports similar symptoms on Windows. My issue occurs on macOS and additionally reports: “Invalid signature (code or signature have been modified).”

Troubleshooting already completed:

• Reinstalled the latest ChatGPT macOS application
• Removed ChatGPT Classic
• Reinstalled the Chrome extension
• Removed and reconnected the Chrome plugin
• Enabled Full CDP Access
• Restarted ChatGPT and Chrome
• Tested in new Work/Codex sessions

The problem seriously disrupts my TradingView market-analysis workflow.

Chrome 拡張機能と CDP 接続パスから始め、報告されたセッションエラー「Invalid signature」と関連する issue #39836 を最初の比較対象として使用します。拡張機能を再接続した後に再現し、署名エラーを繰り返し発生させることなく、クリック、ナビゲーション、タブの切り替えにブラウザー制御を引き続き利用できることを確認します。