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

https://github.com/Duncaen/void-packages firefox-92
https://github.com/void-linux/void-packages/pull/32870

firefox: update to 92.0.
[ci skip]

- [x] x86_64-glibc (tested)
- [x] x86_64-musl (tested)
- [x] aarch64-musl
- [x] i686-glibc

A patch file from https://github.com/void-linux/void-packages/pull/32870.patch is attached