I'm not having an issue with the DNR, but other companies update there devices on a regular bases. If the DNR is still for sale (and it is) then Dlink should update them with new features, compatibility and etc. If they are going to discontinue it then they need to do so and have a replacement for those that want more enhancements, features, etc.
I'm not having an issue with ESR, but I shouldn't have to use that. Plus I'm sure there are people who are not tech savvy like some of us to be able to use both ESR and latest version of Firefox. Plus there is Google Chrome and Edge.