@Shemy
not aware of any bug, when browser solver first gets called I believe that there is a info screen in which you agree to use it or not and a URL to the support article to read up more these new features. This is a once only event.
@harrycox
browser loop provides JDownloader with better quality captcha image though magics.
In short google uses javascript and other trickery to influence captcha quality.
additional information can be found
https://support.jdownloader.org/inde...splay-captchas