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. = Installing a previous version doesn't fix most problems= Problems with an update are generally not caused by the new version of Firefox, but rather the update process. Installing a previous version will not help in most cases. Instead, see: [[Template:UpdateProblems]] Other problems can be solved by [[Managing profiles#w_creating-a-profile|creating a new profile]] or by following the steps in the [[Basic Troubleshooting]] article. = I still want to downgrade — where can I get the previous version? = Although Mozilla has a [https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/ website] with old versions of Firefox for testing purposes, it is not recommended that you use anything but the latest version. {warning}'''Warning:''' Using old versions of Firefox is not supported and poses a significant security risk.{/warning} If you can't use the latest version of Firefox, we recommend that you use the latest version of another browser: {for win} *[http://windows.microsoft.com/en-US/internet-explorer/products/ie/home Internet Explorer] *[https://www.google.com/chrome Google Chrome] *[http://www.opera.com/ Opera] *[http://www.apple.com/safari/ Safari] {/for} {for mac} *[http://www.apple.com/safari/ Safari] *[https://www.google.com/chrome Google Chrome] *[http://www.opera.com/ Opera] {/for} {for linux} *[https://www.google.com/chrome Google Chrome] *[http://www.opera.com/ Opera] {/for}

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.

Installing a previous version doesn't fix most problems

Problems with an update are generally not caused by the new version of Firefox, but rather the update process. Installing a previous version will not help in most cases. Instead, see:

• How to fix the Update Failed error message when updating Firefox
• Fix problems connecting to websites after updating Firefox

Other problems can be solved by creating a new profile or by following the steps in the Troubleshoot and diagnose Firefox problems article.

I still want to downgrade — where can I get the previous version?

Although Mozilla has a website with old versions of Firefox for testing purposes, it is not recommended that you use anything but the latest version.

If you can't use the latest version of Firefox, we recommend that you use the latest version of another browser: