cancel
Showing results for 
Search instead for 
Did you mean: 

Install and Update

Sort by:
Firefox version 52 will be the last complete update for Windows XP and Windows Vista. Security updates will be released, but no new features. Why is Firefox support ending for Windows XP and Vista users? Firefox is one of the only browsers to offer any support for Windows XP and
View full article
By default, Firefox is set to automatically update itself but you can always do a manual update. This article explains how to check for updates.
View full article
Getting Firefox installed on your computer is your first step to using it. This article will show you how to install Firefox on Linux. For other operating systems, see How to download and install Firefox on Windows and How to download and install Firefox on Mac. Many Linux distributions
View full article
Often when there is a problem with a Firefox update, people look for a way to go back to the previous version. That usually doesn't solve the problem and will make your computer and information vulnerable to attack. This article gives you some alternatives to downgrading and links
View full article
This article describes how to download and install Firefox on Windows. To update from a previous version of Firefox, see Update Firefox to the latest version. This article only applies to Windows. For instructions to install Firefox on Mac, see How to download and install Firefox
View full article
It's often important to know what version of Firefox you are using, to help you troubleshoot a problem or just to know if Firefox is up to date. Here are two ways to find out. Click the menu button , click help and select About Firefox.On the
View full article
All of the changes you make in Firefox, like your home page, what toolbars you use, extensions you have installed, saved passwords and your bookmarks, are all stored in a special folder, called a profile. Your profile folder is stored in a separate place from the Firefox program
View full article
This article explains how to download and install Firefox on a Mac. If you are updating from a previous version of Firefox, see Update Firefox to the latest version. Note: This article only applies to Mac. For instructions to install Firefox on Windows, see How to download and
View full article
This article applies to Mac users only. Starting with Firefox version 49, Firefox requires Mac OS X 10.9 (Mavericks) or higher. If you are on an earlier version of Mac OS X, there are options for you to continue using a secure version of Firefox. Visit this Apple Support page to
View full article
This article only applies to Firefox on Windows. The 64-bit version of Firefox can provide better performance than the 32-bit version. Want to switch to the 64-bit version of Firefox? Just install the 64-bit version and uninstall the 32-bit version. Your Firefox user data such as passwords and bookmarks will not be removed.
View full article
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 program files. You can have multiple Firefox profiles, each containing a separate set of user information.
View full article
This article describes how to uninstall the Firefox application for supported operating systems. If you are planning to uninstall and reinstall Firefox to fix problems you may be having, you should first read Troubleshoot and diagnose Firefox problems. Table of Contents1 Uninstall
View full article
Mozilla Firefox stores all your personal settings, such as bookmarks, passwords and extensions, in a profile folder on your computer, in a location separate from the Firefox program. This article explains how to back up your profile, restore it, or move your profile to a new location
View full article
A Firefox profile stores all of your important data, such as your bookmarks, history, cookies, and passwords. This article explains how to copy the files to a new profile, lists important files in the profile and describes what information is stored in these files. If you are having
View full article
Updating from a previous version? If you are upgrading from a previous version of Firefox, see Update Firefox to the latest version. Click on the operating system on which you are installing Firefox. How to download and install Firefox on Windows
View full article
This article only applies to Firefox on Windows. Both 32-bit and 64-bit versions of Firefox are available for 64-bit operating systems, on Windows 7 and above. See this blog post to learn more about 64-bit Firefox. If you want to switch to the 64-bit version of Firefox, see How to
View full article
This issue applies to Mac devices only. After you download and install Firefox on your Mac you may see the error message, "Firefox.app" can't be opened because the identity of the developer cannot be confirmed when you try to open it. Apple has made a security change
View full article
This article only applies to Firefox on Windows. Firefox support is ending for Windows XP and Vista. See this article for details. Windows XP with Service Pack 2 is the minimum Windows version that meets the Firefox System Requirements. We'll explain how to find out your Windows
View full article
Firefox recently tried to update to the latest version, but something went wrong. You can still get the new Firefox by downloading and installing a new copy. Here's how to do it. Download and install Firefox manually Download a fresh copy of Firefox. Click
View full article
Firefox and Thunderbird install an optional service called the Mozilla Maintenance Service which allows application updates to occur in the background, without requiring you to click Yes in the Windows User Account Control (UAC) dialog. Note: The article only applies to Windows.
View full article