SQLDeveloper (17.3.1) Preferences "Web Browser and Proxy" - Selecting "Edge" as the default browser DOES NOT LAUNCH the browser.
The settings for Application : C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
I confirmed the PATH does exist by opening the console and change directory. Attempt to launch the executable manually does not open the browser as well, so this is definitely an issue . ALSO, (trivial) there is no Microsoft Edge icon.
C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe> dir MicrosoftEdge.exe
Directory of C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe
09/29/2017 08:40 AM 13,634,472 MicrosoftEdge.exe
1 File(s) 13,634,472 bytes
Repeating the same steps for: Internet Explorer works properly. In have a 64bit operating system, Windows 10 - version 1709