Linux
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Why apt says Firefox is “already the newest version” on Ubuntu 26.04
Ubuntu’s firefox package is a stub whose version starts with an epoch, so to apt Mozilla’s real Firefox is older. It takes a 1000 pin and, in scripts, –allow-downgrades. Mozilla’s own instructions erase that pin.
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f-snap: get your Ubuntu apps back from snap
Install Ubuntu 26.04 and Firefox is a snap, and so are Thunderbird and more. f-snap puts the apps back as the packages their makers publish, carries your bookmarks and mail over, and leaves Ubuntu’s own tools alone.