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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. Mark messages as Read only after I read them - Mozilla Support

    Sep 11, 2025 · I can't find a setting that will allow marking messages as read only after I read them. By that I mean only after I click on the message to open it in its own tab. I view the new messages in a …

  3. Make Firefox your default browser on Windows | Firefox Help

    Oct 7, 2025 · Whether you're using Windows 10 or the latest Windows 11, this guide will help you set Firefox as your default browser with minimal fuss. Setting Firefox as your default browser on …

  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 downloaded PDF …

  5. 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.

  6. How to install Firefox on Windows | Firefox Help - Mozilla Support

    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 options, see …

  7. 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.

  8. Cookies - Information that websites store on your computer

    Sep 13, 2025 · What is a cookie? A cookie is information stored on your computer by a website you visit. In some browsers, each cookie is a small file but in Firefox, all cookies are stored in a single file, …

  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 information, see Import …

  10. Add or remove a search engine in Firefox | Firefox Help

    Sep 28, 2025 · Firefox comes with a set of default search engines, and you can add more from websites, add-ons, or partner pages. Some users want to add fully custom search engines, but …