[Bug 1927751] [NEW] Firefox 89 beta for Impish in Mozilla Team Firefox Beta PPA is built without Wayland support

[Michael Marley]

Public bug reported:

The Impish build of Firefox 89 beta in the PPA seems to be built without
Wayland support.  This of course causes it to work only in XWayland mode
when running in Wayland, but also breaks VAAPI in both environments due
to "DMABUF unavailable by default: Wayland support missing" as reported
in about:support.

I am reporting this here instead of upstream because the upstream builds
are not affected by this issue (they have Wayland and VAAPI working) and
also the Hirsute builds in the PPA have both things working properly.
It seems limited to the Impish builds.  Additionally, if I check the
build logs for Impish, the only mention of Wayland seems to be the build
dependency packages being installed.  If I check the logs for Hirsute, I
see a number of references during the compilation itself.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  Firefox 89 beta for Impish in Mozilla Team Firefox Beta PPA is built
  without Wayland support

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