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Update to Firefox 128+ by March 14, 2025, to avoid issues with add-ons, DRM media and essential features due to an expiring root certificate.
Firefox will show you a "connection is not secure" warning message when a website login page is insecure and information could be stolen.
This article describes how to download and install Firefox on Linux.
Learn how to make Firefox your default Web browser on Windows 10 and Windows 11.
