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I'm using the fira font in a beamer-presentation and nowadays got this warning:
!pdfTeX error: pdflatex (file fir_7gpamp.enc): cannot open encoding file for
reading

This is how I use the fonts:

\usepackage[sfdefault]{FiraSans}
\usepackage{FiraMono}

It seems that the font map files shipped with texlive-updmap-map are not up to
date with the version of the fira fonts package (their svn tags differ) and
this results in the error above.

After doing the following steps, the newly created map files fix the problem:
updmap-sys --syncwithtrees
updmap-sys

However, this should not even be required with the package texlive-updmap-map
and may even get outdated if I do not keep updating the font maps manually now.
It seems that a simple update of that package should help.

Reproducible: Always