GLX is still the default for firefox-esr. EGL is a non-default
configuration.
Please report this bug to
https://bugzilla.mozilla.org/enter_bug.cgi?format=__default__&blocked=1491303&product=Core&component=Graphics%3A%20WebRender
and attach a screenshot. Thanks!
I was not able to reproduce this bug with firefox-esr and Firefox Nightly
with Basic (software rendering), WebRender (GLX=default) and
MOZ_X11_EGL=1 WebRender
on Debian Testing
with libegl-mesa0 libgbm1 libgl1-mesa-dri libglapi-mesa libglx-mesa0
installed from unstable
(Mesa 21.2.1 on Intel Iris Graphics 6100 (BDW GT3)).
- Darkspirit
----
I could not reply to this bug with my regular email address because
Debian's mail server is not properly configured.
"The mail system <994...@bugs.debian.org>: Server certificate not trusted"
https://www.hardenize.com/report/bugs.debian.org/1631554082#email_certs
