Edge does not(yet) support webextensions. But as far as I know they are working on support. So at the moment you will have to use Firefox, Chrome or Opera or install it as second browser. Yes you can customize Browser in JDownloader and keep Edge as default one in your System
Settings-Advanced Settings-BrowserCaptchaSolver.browsercommandline
https://board.jdownloader.org/showpo...2&postcount=13
Point 9 here,
https://support.jdownloader.org/Know...splay-captchas