Martin Stránský (Red Hat) is working on native Wayland support for Firefox and the build time option should land soon (already r+'d), allowing his other patches to be integrated.

https://github.com/stransky/gecko-dev https://bugzilla.mozilla.org/show_bug.cgi?id=635134

IIRC LibreOffice should already be running natively on Wayland. (also a Red Hat effort in mid-2015)

https://caolanm.blogspot.com/2015/07/libreoffice-on-wayland....