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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. Bookmarks in Firefox | Firefox Help - Mozilla Support

    Bookmarks (called Favorites in Microsoft Edge) are links you save to web pages that make it easy to get back to your favorite places. This article covers the basics of creating and managing …

  3. 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 …

  4. 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.

  5. Keyboard shortcuts - perform common Thunderbird tasks quickly

    Sep 16, 2025 · Keyboard shortcuts are quick key combinations that replace mouse navigation. This is a list of commonly used keyboard shortcuts in Thunderbird.

  6. Search with the Firefox address bar | Firefox Help

    Sep 19, 2025 · The address bar makes it easier for you to find what you’re looking for. Enter search terms or a specific web address to get search suggestions, your top sites, bookmarks, …

  7. Profile Manager - Create, remove or switch Firefox profiles

    Jul 30, 2025 · Firefox saves your personal information such as bookmarks, passwords and user preferences in a set of files called your profile, which is stored in a separate location from the …

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

    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 Windows …

  9. 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.

  10. Move Thunderbird data to a new computer | Thunderbird Help

    Dec 30, 2024 · Thunderbird stores your data in a separate location, away from the program filesapplication, called your profile folder. To move your data, you can copy your profile folder …