Firefox is designed to update automatically in the background, but you can manually trigger a check to ensure you're on the absolute latest release (currently as of late April 2026). Manual Update Process (Desktop) Update your browser to fast, safe and secure Firefox.
Once the file is downloaded, open it and follow the on-screen prompts. Your bookmarks and settings will typically be preserved if you are overwriting an older version. How to Update Firefox (Manual and Automatic)
The website usually detects your operating system (Windows, macOS, or Linux) automatically, but you can also choose specific versions for Android or iOS.