Map Editor I Can't Make it work....HELP

I've tried over and over again....I get this every time I try to get the editor up:

"atWar uses Microsoft Silverlight plugin - unfortunately, Chrome no longer supports it. What can be done?

Option 1: Download & install
Click here to download the optional atWar client for Windows.

Option 2: HTML5 client (beta)
Our new HTML5 client doesn't use any plugins and should be supported by all modern browsers. Click here to give it a try.

Option 3: Play with another browser
Silverlight compatible browsers are listed here. "

No matter what I do, I can't get it ti go any further....I "give it a try" and get kicked back to the main map page.
I downloaded and installed the at-war client but it won't let me log in (do i have to register that separately?):

I have windows 10 and have tried explorer, firefox, chrome browsers.

Could someone please help!

The silverlight launcher doesn't even work for me, before I can even log in I get "Server disconnected: Connection error."

Yeah, it still doesn't work lol.

I had problems, until I used an old version of Firefox (ESR) that still supports Silver Light.
You can download it here: https://www.mozilla.org/en-US/firefox/organizations/.
If you have another version of Firefox installed, make sure to install in a new directory AND start the ESR version before testing AtWar
Let me know if it works.

For me it does work on internet explorer.