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.
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.
Client Challenge - Mozilla Support
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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 …
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.
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 …
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 …
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 …