docs/main/end-user-guide/preferences/manage-your-web-notifications.mdx
From Mattermost v9.10, Mattermost prompts you to grant permission to your web browser to show notifications.
In a web browser, Mattermost icons display the following types of badges:
A red dot badge means you have unread @mentions, keywords, direct messages, and group messages.
A black dot badge means you have unread activity in channels you're a member of.
By default, web-based notifications include audible sounds.
Mattermost notification settings labeled as Desktop also configure your web-based notifications when using Mattermost in a web browser.
</Tip>To reduce the number of notifications you receive, select Desktop and mobile notifications > Mentions, direct messages, and group messages, and save your changes. You can set this preference across all channels or for specific channels.
With limited notifications enabled, you can also choose to receive notifications about replies to threads you're following by selecting Notify me about replies to threads I'm following.
You can change or disable notification sounds by going to Desktop notification sounds > Message notification sound.
Want to hear a sound when a Mattermost call starts? If your Mattermost admin enables this Beta feature, you can choose the sound that plays when a call is started within a direct or group message by going to Desktop notification sounds > Incoming call sound.
Select Desktop and mobile notifications > Nothing to disable all web and desktop notifications.
Clear the Use different settings for my mobile devices to additionally disable all Mattermost mobile notifications everywhere you use Mattermost.
Mattermost will continue to prompt you to grant permission to the browser to show notifications until you respond to the prompt. If you want to disable all Mattermost notifications, select Enable notifications when prompted, and then disable all Mattermost web notifications.