Firefox 60
Please upgrade Firefox in testing to version 60 as 58.0.1 has many critical CVE’s.
Patches and files for building with musl libc can be found in Void Linux package repository:
https://github.com/voidlinux/void-packages/tree/master/srcpkgs/firefox
(from redmine: issue id 8903, created on 2018-05-17, closed on 2019-02-25)