災害用伝言板

Disaster Message Board Chrome Extension provides browser-based access to SoftBank’s Disaster Message Board service. You can register, confirm, and delete your safety status, and automatically notify trusted contacts when you post a message. The extension is designed to help you stay connected with family and friends during emergencies while using standard browser features.

Notes: Requires an active SoftBank subscription and service availability. Network usage may incur charges according to your carrier or plan; keep the extension up to date for best reliability.