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

Firefox 94
https://github.com/void-linux/void-packages/pull/33872

Description:
[ci skip]
- [x] x86_64-glibc (tested, works with X11)
- [x] x86_64-musl (tested, works with X11)
- [x] i686-glibc
- [x] aarch64-musl