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Outlook: hide the app launcher

Hides the waffle icon in the top-left corner that opens the other Microsoft apps menu.

Code to copy

/* Hide the waffle app launcher in the top-left corner */
button[aria-label="App launcher"],
button[aria-label="Aplikacje"],
#O365_MainLink_NavMenu,
button[title="App launcher"] {
  display: none !important;
}

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's CSS panel and save — the effect appears instantly.