There's a merged pull request on the void-packages repository

Thunderbird 78.6.0
https://github.com/void-linux/void-packages/pull/26896

Description:
Still seeing if cross compilation reaches the end successfully.

Would appreciate testers.

Have launched on x86_64-musl, but I'm not on the device that uses thunderbird, so I haven't logged in yet.

Based on and closes #24509 

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