For firewall only, are "database updates" important?

Comodo Free x64 v. ~ Windows 7 x64

I use Comodo as a firewall + HIPS only, not an antivirus app (I have Avast installed for that). Unclear if the “database updates” are necessary for the non-AV functions – ?? Online search seems to refer to them as part of the AV component(s) only.

Can I disable, or at least delay for prolonged periods, “database” updates?

The update signatures would be for the antivirus not for the firewall.

Probably not.
I think this may still update the web filtering databases which are also a part of the Firewall, but those haven’t been updated in over a year I think so no point really.