There is an updated pull request by JamiKettunen against master on the void-packages repository

https://github.com/JamiKettunen/void-packages mobile-config-firefox
https://github.com/void-linux/void-packages/pull/45929

mobile-config-firefox: update to 4.1.0.
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#### Testing the changes
- I tested the changes in this PR: **NO**, anyone with a mobile form factor device is welcome to try though :)

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A patch file from https://github.com/void-linux/void-packages/pull/45929.patch is attached