And it’s thanks to the work of those people that it has finally made it upstream, specially Fedora’s Martin Stránský (who has been doing tons of work on Firefox, including making Fedora the first distro to ship Firefox with VA-API enabled by default).
To be clear, many of us will have already been using Firefox in Wayland mode by default, if our distro enabled it.
E.g. Fedora Workstation has had Firefox in Wayland mode since Fedora 31
And it’s thanks to the work of those people that it has finally made it upstream, specially Fedora’s Martin Stránský (who has been doing tons of work on Firefox, including making Fedora the first distro to ship Firefox with VA-API enabled by default).