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 …
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.
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 …
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.
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 options, see …
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.
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 …
Back up and restore information in Firefox profiles
Oct 19, 2025 · Firefox stores your personal data and settings in a profile folder. Learn how to back up and restore this important information.
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 browsing …
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 Firefox …