(Microsoft) Teams for Web Improved. A WebExtension that adds native notifications to the Web version of Microsoft Teams. Take a look at the settings for this extension in about:addons
What is teams-wim?
teams-wim is a Firefox add-on called (Microsoft) Teams for Web Improved. It adds native notifications to the Web version of Microsoft Teams. You can customize the settings for this add-on in about:addons.
teams-wim is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install teams-wim if you trust the publisher.
teams-wim has earned a fairly good reputation and likely can be trusted.