Download past version of firefox

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Mozilla Foundation Meet the not-for-profit behind Firefox that stands for a better web. Get involved Join the fight for a healthy internet. Careers Work for a mission-driven organization that makes people-first products. If there is a problem with a new version of Firefox, some people may want to downgrade Firefox to a previous version but we do not recommend this.

The latest Firefox version includes security updates so downgrading to an older version leaves you more vulnerable to attacks and usually doesn't fix the problem. This article gives you some alternatives to downgrading and links to older versions of Firefox if you do choose to downgrade. Problems with an update are usually not caused by the new version of Firefox, but rather the update process. In most cases, installing a previous version will not help. Instead, see:. Ensure all security and security-related software is fully updated.

Some security software will need to be upgraded to a new version so that it is compatible with each Firefox version update. Optional software bundled with security software also may need updating. Work for a mission-driven organization that makes people-first products.

More About Mozilla. More Mozilla Innovation. Firefox release notes are specific to each version of the application. Select your version from the list below to see the release notes for it. Download Firefox Firefox Privacy Notice. Get Mozilla VPN. There are a lot of customization options, add-ons, and a very active user forum where you can have any questions answered. Is Firefox Safe? I tested the file in VirusTotal and it was clean. Does Firefox have Incognito Mode?

For those security features, you will need a VPN. Can I change the default search engine in Firefox? Click on the menu in the top-right corner of the page and click Options. Click on the Search tab on the right sidebar.