Click About Firefox. Firefox will now check for an update. If an update is available, you’ll see a button that says ″Update to (version number).″ If you don’t see this button, you’re already using the latest version. To disable automatic updates, select “check for updates, but let me choose whether to install them” or ” Never check for updates”. Method 2: Do it from You can access advanced settings for Mozilla Firefox from about: config. Launch Firefox and in the address bar type in about: config and hit enter.

Download a new copy of the latest Firefox version and save the disk image (dmg) file to the desktop. Trash the current Firefox application (e.g.

Open the Applications folder in the Finder and drag the Firefox application to the Trash) to do a clean (re-)install. Install the new version that you have downloaded Your personal data is stored elsewhere in the Firefox profile folder, so you won't lose your bookmarks and other personal data when you uninstall and (re)install Firefox.

• Firefox automatically updates itself by default but you can always do a manual update. Learn how to update Firefox on Windows, Mac or Linux. • Firefox version 52.9.0esr was the last supported release for Windows XP and Windows Vista. No further security updates will be provided for those systems. • This article describes how to download and install Firefox on Windows. • Learn how to find out what Firefox version you are using, to help troubleshoot a problem or just to know if Firefox is up to date. • This article describes how to remove the Firefox application from your computer and also how to remove the personal information that Firefox stores.

• This article will show you how to install Firefox on Linux. • On computers with processors older than Pentium 4, Firefox is no longer supported as of version 49 (Windows, Mac OS) or version 53 (Linux).

• Learn about the automatic migration from 32-bit to 64-bit Firefox after a Firefox update and how to keep 32-bit Firefox on 64-bit Windows. • What to do if you spot fake notices claiming to contain an 'urgent' or 'critical' Firefox update.

• This article explains how to download and install Firefox on a Mac. • How to create dedicated profiles if you use both Firefox Beta and the regular version of Firefox. • Windows 10 S Mode can only run applications downloaded from the Windows Store. • How to create dedicated profiles for Firefox and Nightly to avoid profile corruption. • How to switch to Firefox ESR as a workaround for issues with the newest version of Firefox. • Downgrading usually doesn't solve Firefox problems.

This article gives you links to old versions of Firefox and some alternatives to downgrading. • Firefox and Thunderbird install Mozilla Maintenance Service to allow seamless background updates. Learn how it works and how to disable or remove it. How to always cc myself on an email in outlook for mac. • Not sure whether you're running 32-bit or 64-bit Firefox?

This article explains how to find out. • Firefox version 49 and above are no longer supported on Mac OS X 10.6, 10.7 and 10.8. Learn more about your options. • Links to release notes for Firefox and Firefox for Android.