Dear maintainer(s),

I noticed that package polymake recommends iceweasel, which is currently
not available in unstable.

See:

- https://tracker.debian.org/pkg/iceweasel

iceweasel was removed from Debian in 2016, rebranded/replaced by
firefox.

If polymake tries to open a website, I think that would make sense to
use as recommends "firefox-esr | sensible-utils" and then use
"sensible-browser" from the package sensible-utils.

If polymake tries to use firefox specifically in some way: then
recommending "firefox | firefox-esr" I guess that would make sense.

Thank you for your time,

PS[0]: I am developing a tool to detect such issues:
https://salsa.debian.org/carlespina/check-relations . Reports are
manually reviewed before submission. If you would prefer not to receive
such reports (for specific packages, all of your maintained packages,
etc.), please let me know. Any other feedback is welcomed as well. No
more bugreports for this missing relation will be sent.

PS[1]: more information available in
https://salsa.debian.org/carlespina/check-relations/-/blob/main/README.md
and
https://salsa.debian.org/carlespina/check-relations/-/blob/main/docs/bug-report-extra-info.md