JDownloader

Captcha dialogs stay open once the dialog timeout got cancelled (eg mouse movement)
As captchas have a timeout as well it makes to keep dialog opened longer than the captcha timeout

plugins can modify the timeout and customers can do this as well

suggest:
as a plugin can have support for several captcha methods, each having different timeouts it should report the maxTimeout for captcha via a getter
as the customer can also customize this dialog timeout it is needed to overwrite the custom timeout

-plugin method returns
negative = max keep alive for timeout
0 = don't care, use system settings/customized settings
positive = default timeout for this captcha. use higher value (plugin or customized timeout)

Dialog countdown should not stop! (eg mouse movement)