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Firefox automatically updates itself by default but you can always do a manual update. Learn how to update Firefox on Windows, Mac or Linux.
Options/Preferences panels give you access to Firefox settings. This article describes what types of settings are available in each panel.
Learn why you might see time-related errors on HTTPS websites and how you can troubleshoot these errors by correcting your system clock.
Learn how to make Firefox your default Web browser on Windows 10 and Windows 11.