ICS Viewer от user77

Standalone ICS Viewer:
View ICS events and calendars directly in your browser.
No need for any external apps, like: Outlook, Teams, Exchange or Google Calendar.
Completely free and open source with GPL v3 license.

Key Features:
- Direct Viewing: Easily view ICS files directly in your browser without needing to open an external application.
- User-Friendly: Drag and drop or upload ICS files with ease, allowing you quick access to your calendars.
- Teams Meeting: Directly copy or click on your Microsoft Teams meeting link, if url is included in your ICS file.
- No Data Collection: Your privacy is important. This addon does not collect any personal data and processes all information locally on your device.
- Support for Multiple Files: View multiple ICS files at once and easily navigate between different events.
- Offline Access: Since everything is processed locally, you do not need an internet connection to view your calendars