Firebase Hosting Can't Add Domain
firebaser here
While we did make some changes to our custom domain provisioning this week, it seems that you're hitting another problem.
Is any part of this on a Google Workspace account by any chance? If that is the case, your domain may not allow the search console. You'll want to reach out to their GSuite organization admin/owner to enable the Search Console. See Turn Google Search Console on or off for users for complete instructions.

When I try to add a custom domain to Firebase Hosting, I encounter this error. Nothing happens when I click Continue.
Upon clicking continue, it loads for a few seconds, and then the same screen persists.

When I checked the console, HTTP requests are responded with 503 Service Unable.

