After upgrading to Firefox 77, I have trouble reaching internal websites the way I used to. My company uses a custom internal top level domain for internal services, let's call it `mytld`. If I enter a domain such as `webservice.mytld` in the address bar, I end up in search results on Google. Previously, I would end up on https://webservice.mytld/ as expected.

I have found a partial solution with the setting `browser.fixup.domainwhitelist.webservice.mytld`. The issue I have with that solution is that I have to configure every single service that way. I would rather have a solution where I can educate Firefox to understand that `mytld` is a valid TLD for me.