Messenger lives at messenger.com in a browser now. To make it feel like an app, open it in Chrome or Edge and use Install this site as an app from the menu, you get a proper window and taskbar icon. If you run several chat apps, a unified desktop app that holds them all in tabs saves the tab juggling.
Tried the top answer and it fixed it instantly. Cheers. – Desmond Torres 17mo ago
Clear, concise, correct. Rare combo on the internet these days. – Ravi Patel 17mo ago
Works a treat. The airplane mode step is the one everyone skips. – Zoe Quinn 17mo ago
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The web version is the official route. If you are like me and also have WhatsApp, Slack and Telegram open, I moved them all into Spanbox so they sit in one window with one unread list instead of five separate tabs. Free for a few apps and it is local on your machine.