Discover the latest Firefox versions for Mac and learn how to manage and update your browser for optimal performance and security. Mozilla regularly releases updates to enhance Firefox's speed, stability, and privacy features, ensuring a seamless browsing experience on your Mac.
Understanding Firefox Versions for Mac
Firefox for Mac follows a versioning system that corresponds to the release date and update number. Each version brings improvements, bug fixes, and new features. Understanding the versioning system helps you identify which updates are major or minor.
Firefox uses a semantic versioning scheme, which follows the format MAJOR.MINOR.PATCH. For instance, Firefox 89.0.2 indicates the following:

- MAJOR: Significant changes and new features (e.g., Firefox 89 introduced a new tab design).
- MINOR: Backwards-compatible changes and improvements (e.g., Firefox 89.0.1 fixed a security issue).
- PATCH: Bug fixes and minor improvements (e.g., Firefox 89.0.2 resolved a rendering issue).
Checking Your Current Firefox Version on Mac
Before updating or troubleshooting, it's essential to know your current Firefox version. Here's how to check it:
- Open Firefox on your Mac.
- Click on the menu icon (three horizontal lines) in the top-right corner.
- Select About Firefox from the dropdown menu.
- The About Firefox page will display your current version (e.g., Firefox 89.0.2).
Updating Firefox on Mac
Mozilla provides automatic updates for Firefox, ensuring you always have the latest version. However, you can also manually update your browser. Here's how:
- Open Firefox and click on the menu icon.
- Select Preferences (or Options on some systems).
- In the left-hand menu, click on General.
- Under the Firefox Updates section, ensure that Automatically update Firefox is checked.
- If you want to update Firefox immediately, click on the Check for updates button.
Firefox ESR (Extended Support Release) for Mac
Firefox ESR is a version of Firefox designed for organizations and enterprises that need extended support for their browsers. It receives security updates for a more extended period than the regular version. If you're using Firefox ESR on your Mac, you can update it following the same steps as the regular version.

Firefox ESR Release Schedule
Firefox ESR is released every six weeks, with security updates provided for a period of 54 weeks. You can find the latest ESR version and its release schedule on the Firefox for Organizations page.
Troubleshooting Firefox Version Issues on Mac
If you're experiencing issues with your Firefox version on Mac, try the following troubleshooting steps:
- Restart Firefox and your Mac.
- Disable any extensions you're using.
- Create a new profile in Firefox.
- Reinstall Firefox, ensuring you download the latest version from the official Mozilla website.
If you're still experiencing issues, consider seeking help from the Firefox Support community or contacting Mozilla directly.
| Firefox Version | Release Date |
|---|---|
| Firefox 91.0 | August 3, 2021 |
| Firefox 90.0 | June 1, 2021 |
| Firefox 89.0 | March 23, 2021 |
Stay informed about the latest Firefox versions for Mac by visiting the Firefox Release Notes page. Keep your browser up-to-date for the best performance, security, and privacy.