Hello Guix,

Version 78 of the upstream Chromium project was released yesterday, with
the usual amount of security fixes:

https://chromereleases.googleblog.com/2019/10/stable-channel-update-for-desktop_22.html

Unfortunately the 'ungoogled-chromium' variant in Guix is still stuck on
version 76.  The reason is that we rely on Debians patches, which have
gone stale:

https://salsa.debian.org/chromium-team/chromium

I plan to remove 'ungoogled-chromium' and 'ungoogled-chromium-wayland'
in a few days, unless someone is willing to port the patches.  I can
help extracting just the few changes we need, but do not have time nor
motivation to port them to the newer version myself.

Here is a preliminary patch: