Open JDownloader and navigate to > Advanced Settings .
JDownloader 2 actually has for browsers: one for opening general links and another specifically for solving captchas. 1. Set the Browser for Opening Links jdownloader set browser
If you want to use Incognito Mode for captchas in Chrome, use: ["C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe", "-incognito", "%s"] . Open JDownloader and navigate to > Advanced Settings