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  1. Make Firefox your default browser | Firefox Help - Mozilla Support

    May 14, 2024 · How to make Web links open in Firefox automatically by setting it as the default browser on your computer.

  2. Troubleshoot and diagnose Firefox problems - Mozilla Support

    Sep 19, 2025 · This article includes a series of steps you can follow, that will help you fix most problems with Firefox.

  3. Set Firefox as your mail-to default on Windows | Firefox Help

    Aug 29, 2025 · Learn how to set Firefox as your MAILTO default on Windows and configure it to handle mail links seamlessly.

  4. Choose your preferred PDF viewer in Firefox | Firefox Help

    Feb 27, 2025 · When Firefox is set as the default PDF viewer, it automatically opens PDF files in the built-in viewer. However, you can choose to use another application to view your …

  5. Thunderbird and Gmail | Thunderbird Help - Mozilla Support

    Oct 23, 2025 · Thunderbird can be set up to work seamlessly with Google's Gmail. Messages will be synchronized between your local version of Thunderbird and web-based Gmail.

  6. How to install Firefox on Windows | Firefox Help

    Oct 7, 2025 · This article explains how to install Firefox on Windows, either with a simple online installer from Mozilla or from the Microsoft Store. If you need a full, offline installer with custom …

  7. Add custom search engines in Firefox | Firefox Help

    Sep 19, 2025 · Learn how to add custom search engines in Firefox 140 and above, from the search field of supported websites or in Firefox settings.

  8. Enhanced Tracking Protection in Firefox for desktop

    Oct 16, 2025 · Enhanced Tracking Protection in Firefox automatically protects your privacy as you browse. It blocks trackers that follow you around online to collect information about your …

  9. Manage Firefox with Microsoft Endpoint Manager (Intune)

    Mar 29, 2025 · Note: Microsoft has a new feature in preview that makes it much easier to import ADMX templates into Intune. We strongly recommend using it if you can. For more …

  10. Customize Firefox using Group Policy (Windows)

    Nov 5, 2024 · Firefox supports setting policies via Active Directory as well as using Local Group Policy.