Please state arch names explicitly for the builds in download page, especially those for Linux.

[it9exm]

https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
https://www.thunderbird.net/en-US/thunderbird/all/

Also, a native linux aarch64 build would be welcome.
Switch to xz for the archive format, provide official AppImages.

[Jon]

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