Messenger Web App Upgrade

Tired of the default Facebook Messenger notification sound, wanting to close out of a chat you're not currently reading, or hoping to see your unread count at a quick glance? Messenger Web App Upgrades adds some new usability features to help:
- Set a custom notification sound for new messages
- Press the Escape key to close out of the current chat
- Display unread badges (only if the site is installed as a PWA)

Install and launch the extension, configure settings as desired, then refresh Messenger for the changes to take effect.

Uploaded audio data is stored exclusively on-device. Additionally, the extension does not collect data or report back to any server or cloud service.

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Open source under the GPLv3 license.
Source Code:
https://github.com/mejia-dev/Messenger-Web-App-Upgrades
File a Bug:
https://github.com/mejia-dev/Messenger-Web-App-Upgrades/issues?state=open

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Disclaimer: This extension is not in any way affiliated with, associated with, authorized, or endorsed by Facebook or Meta Platforms, Inc. Facebook Messenger is a registered trademark of Meta Platforms, Inc.