This is the next step in getting a new release of the Portal application deployed.
Prepare Portal application for release 2.*
Firefly online help is not reachable from the Firefly JupyterLab extension
We had already created a 2.0.0 based on 2020.2, so in practice I've created a 2.1.0 Portal development build based on rc-2020.3 of Firefly. It's available on DockerHub as ipac/suit:rc-2.1.0-2. This is now deployed on https://lsst-lsp-int.ncsa.illinois.edu/portal/app and is under test. A true release build will be created once Firefly's release-2020.3.0 comes out, likely tomorrow.
Long since complete; closing ticket.