Ponder Firefox install

Mozilla has a new repo we might want to change to

https://blog.mozilla.org/en/products/4-reasons-to-try-mozillas-new-firefox-linux-package-for-ubuntu-and-debian-derivatives/

https://support.mozilla.org/en-US/kb/install-firefox-linux#w_install-firefox-deb-package-for-debian-based-distributions

We could use Snaps too of course.

And we should also ponder using another web browser such as Falkon or Chromium but my feeling is not much change there.