Where can i download firefox version 55

I need to be able to download an earlier version of Firefox my current install is V You can install a portable ESR Firefox version to access websites that do not work with the current Firefox release. The portable version comes with its own profile folder and doesn't interfere with currently installed Firefox versions. If you still want to downgrade, look under; I still want to downgrade. Work for a mission-driven organization that makes people-first products. More About Mozilla.

More Mozilla Innovation. Launched Windows support for WebVR , bringing immersive experiences to the web. See examples and try working demos at Mozilla VR. Updated Sidebar for bookmarks, history, and synced tabs so it can appear at the right edge of the window as well as the left.

Make screenshots of webpages, and save them locally or upload them to the cloud. Various security fixes. Modernized application update UI to be less intrusive and more aligned with the rest of the browser. 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. Fix a problem causing What's new pages not to be displayed bug Fix a rendering issue with some PKCS 11 libraries bug Disable the predictor prefetch bug Reference link to Bookmarks may be lost for users who have a single quote in their profile name Bug Download Firefox Firefox Privacy Notice.

Get Mozilla VPN. Firefox for Android Get the customizable mobile browser for Android smartphones.