I don't see an open issue for Network.setCookie, is that going to be done as part of this issue?

P.S. This work is super exciting, I'm checking on the status of adding the CDP to Firefox daily, can't wait until I can use it

Your question is a bit off-topic but let me answer... currently our focus is on getting as many as possible dependencies for bug 1545057 fixed. So you can expect a couple of additions in the upcoming weeks.

If you have interest you could also help with the implementation of certain domains. We haven't explicitly listed mentored bugs but we are all happy to mentor where-ever help is necessary.

I asked here because I didn't see an issue open for Network.setCookie linked to from that master issue, only Network.setCookies, so I was not sure if Network.setCookie support is planned or just Network.setCookies. :)

I'll look in to contributing, since we're really likely to use this once it's out. Am I free to pick up any new/unassigned task in this project?

Having not Network.setCookie definied was just an oversight. Given that setCookies just uses a list of cookies, any kind of work on this bug should depend on bug 1588110 being implemented.

It's great to hear that you are interesting in contributing. I would suggest that you have a look at https://firefox-source-docs.mozilla.org/remote/index.html. Feel free to contact me directly (email, IRC) or the mailing list, and we can figure out what would be the best for you. Thanks in advance!

With bug 1588114 fixed there is no more work to be done here.