Install an older version of Firefox

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Warning: Firefox now includes downgrade protection to prevent corruption of user profile data. If you install an older version, you'll be prompted to create a new Firefox profile.

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.

Unwanted features in the new Firefox version

If you dislike new features in the latest version of Firefox, your first reaction might be to go back to the previous version. Rather than downgrading, try getting used to the new features or ask a question on the support forum, to see if there is a workaround or a way to restore the old behavior without downgrading Firefox. See Get community support.

Installing a previous version doesn't fix most problems

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:

Note: Other problems can be solved with the Refresh Firefox feature. It restores Firefox to its default state while saving your essential information.

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. Such software may not be essential for your security but, if outdated, may interfere with the use of Firefox or cause Firefox to crash.

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

If you still want to downgrade, you can visit Mozilla's directory of older Firefox versions using the links below. Please note, however, that using older versions can make Firefox insecure and more vulnerable to attacks and scams. We recommend that you always use the newest version of Firefox.
Warning: Older versions of Firefox may not include the latest security features.

Firefox 114.0.2 32-bit (US English)
Firefox 114.0.2 64-bit (US English)
Firefox 114.0.2 (US English) Firefox 114.0.2 32-bit (US English)
Firefox 114.0.2 64-bit (US English)

Firefox 115.0.3 32-bit (US English)
Firefox 115.0.3 64-bit (US English)
Firefox 115.0.3 (US English) Firefox 115.0.3 32-bit (US English)
Firefox 115.0.3 64-bit (US English)

Firefox 116.0.3 32-bit (US English)
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Firefox 116.0.3 (US English) Firefox 116.0.3 32-bit (US English)
Firefox 116.0.3 64-bit (US English)

Firefox 117.0.1 32-bit (US English)
Firefox 117.0.1 64-bit (US English)
Firefox 117.0.1 (US English) Firefox 117.0.1 32-bit (US English)
Firefox 117.0.1 64-bit (US English)

Firefox 118.0.2 32-bit (US English)
Firefox 118.0.2 64-bit (US English)
Firefox 118.0.2 (US English) Firefox 118.0.2 32-bit (US English)
Firefox 118.0.2 64-bit (US English)

Firefox 119.0.1 32-bit (US English)
Firefox 119.0.1 64-bit (US English)
Firefox 119.0.1 (US English) Firefox 119.0.1 32-bit (US English)
Firefox 119.0.1 64-bit (US English)

Firefox 120.0.1 32-bit (US English)
Firefox 120.0.1 64-bit (US English)
Firefox 120.0.1 (US English) Firefox 120.0.1 32-bit (US English)
Firefox 120.0.1 64-bit (US English)

Firefox 121.0.1 32-bit (US English)
Firefox 121.0.1 64-bit (US English)
Firefox 121.0.1 (US English) Firefox 121.0.1 32-bit (US English)
Firefox 121.0.1 64-bit (US English)

Firefox 122.0.1 32-bit (US English)
Firefox 122.0.1 64-bit (US English)
Firefox 122.0.1 (US English) Firefox 122.0.1 32-bit (US English)
Firefox 122.0.1 64-bit (US English)

Firefox 123.0.1 32-bit (US English)
Firefox 123.0.1 64-bit (US English)
Firefox 123.0.1 (US English) Firefox 123.0.1 32-bit (US English)
Firefox 123.0.1 64-bit (US English)

Firefox 124.0.2 32-bit (US English)
Firefox 124.0.2 64-bit (US English)
Firefox 124.0.2 (US English) Firefox 124.0.2 32-bit (US English)
Firefox 124.0.2 64-bit (US English)

Firefox 125.0.3 32-bit (US English)
Firefox 125.0.3 64-bit (US English)
Firefox 125.0.3 (US English) Firefox 125.0.3 32-bit (US English)
Firefox 125.0.3 64-bit (US English)

Firefox 126.0.1 32-bit (US English)
Firefox 126.0.1 64-bit (US English)
Firefox 126.0.1 (US English) Firefox 126.0.1 32-bit (US English)
Firefox 126.0.1 64-bit (US English)

Firefox 127.0.2 32-bit (US English)
Firefox 127.0.2 64-bit (US English)
Firefox 127.0.2 (US English) Firefox 127.0.2 32-bit (US English)
Firefox 127.0.2 64-bit (US English)

Directory of other versions and languages

Important: By default, Firefox is set for automatic updates. To prevent Firefox from automatically updating itself after you install an older version, you'll need to change your Firefox update settings: In the Menu bar at the top of the screen, click Firefox and then select Preferences or Settings, depending on your macOS version.Click the menu button Fx89menuButton and select Settings. In the General panel, go to the Firefox Updates section.

Alternatives to downgrading

Downgrading to an older version of Firefox might not be the best option due to security concerns. Instead of altering your update settings or switching to a less secure Firefox version, consider the following alternatives:

Install Firefox Extended Support Release. Firefox Extended Support Release (ESR) is tailored for large organizations like universities and businesses, yet it's perfectly suited for personal use as well. While Firefox ESR might not feature the very latest in terms of functionality, it benefits from the most recent security and stability updates. For further details, see the article Switch to Firefox Extended Support Release (ESR) for personal use.

Optimize your Firefox settings for security and privacy. Enhancing your current Firefox setup can often address concerns. Explore the privacy and security settings to adjust your browsing experience. This can include adjusting enhanced tracking protection settings, adjusting permissions, and using privacy-focused add-ons. For further guidance on making these adjustments, explore the community forums for tips and best practices.

Help us make Firefox better

If the latest version of Firefox is giving you trouble, or you just don't like something, please give us feedback about it here:

Submit your feedback and suggestions about Firefox

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