Why does JD open my browser?
Some captcha types require a browser environment (JavaScript, Cookies, ...) to get solved. Others are much easier to solve if we use the browser fo example Googles "reCaptchaV2" and "reCaptchaV3":
( Side-Note: Once clicking a reCaptchaV3, it can visually change to look like a reCaptchaV2 at any time.) reCaptchaV2 and reCaptchaV3 ("Invisible reCaptcha") demo/example: recaptcha-demo.appspot.com Side-Note: Invisible reCaptcha captchas may actually be invisible in a real browser but when you need to solve such captchas via JDownloader Browser-Solver, they will always be visible due to technical reasons!  hcaptcha demo/example: dashboard.hcaptcha.com/signup
Which software-requirements does browser captcha solving have?
This depends on the kind of installation you have:
Requirements for Headless & myjdownloader users:
Requirements for "normal" JDownloader with GUI
- A supported browser and our myjdownloader browser addon
- As long as you're trying to solve the captcha on the same computer where JDownloader is running, a myjd account is not required
Captcha related advanced settings
There are several Advanced Options (Settings->Advanced Settings) to customize the browser solver behavior.
Only change them if you know what you are doing!
- Enabled: This will enable/disable the browser solver
- Local HTTP Port: The http port of the local webserver
- Blacklist Entries: Define which hoster/plugins shall not use the browser solver.
Example: [ "uploaded.to-recaptcha" ].
Note: We strongly recommend to modifiy this value in [Settings->Captcha->Settings Column]
Note: The format is a json array.
* Do not forget the leading and trailing chars: [ and ]
* These special characters must be escaped: \ and " --> \ to \\ and " to \"
* Each parameter in your commandline should be wrapped by " and seperated by a ,
* Use %s as wildcard for the url
* Do not press enter to confirm changes. Just unfocus the field by clicking somewhere else.
- Auto Open Browser: Should JD open the browser for you, or do you prefer to click a button to open it?
- Auto Click: JD can help you to solve some captchas in the browser, by simulating clicks and text inputs in the browser window.
- Wait For Map: Is required for the solver priority.
Example: {"imagetyperz" : 60000,"dbc" : 60000,"9kw" : 120000,"myjd" : 60000,"jac" : 32000,"cb" : 120000}
Note: We strongly recommend to modifiy this value in [Settings->Captcha->Timeouts Column]
Note: The format is a json object.
* Do not forget the leading and trailing chars: { and }
* These special characters must be escaped: \ and " --> \ to \\ and " to \"
* Each parameter in your commandline should be wrapped by " and seperated by a ,
* Use %s as wildcard for the url
* Do not press enter to confirm changes. Just unfocus the field by clicking somewhere else.
- Black White Listing: Enable/Disable the Blacklist or Whitelist Entries.
- Whitelist Entries: Define which hoster/plugins shall ignore the Blacklist Entries the browser solver.
Example: [ "uploaded.to-recaptcha" ].
Note: We strongly recommend to modifiy this value in [Settings->Captcha->Settings Column
Note: The format is a json array.
* Do not forget the leading and trailing chars: [ and ]
* These special characters must be escaped: \ and " --> \ to \\ and " to \"
* Each parameter in your commandline should be wrapped by " and seperated by a ,
* Use %s as wildcard for the url
* Do not press enter to confirm changes. Just unfocus the field by clicking somewhere else.
- Browser Commandline: We recommend to use the default browser that you use every day. If you want to use a different browser anyway, follow the linked instructions.
- Browser Loop: If enabled, JD will use your default browser to improve the captcha detection.
Troubleshooting
Excluding 3rd party browser-addon related issues:
No matter which issue with browser captchas you are having: First disable all of your installed browser addons except our myjdownloader addon and check again!
Sometimes other browser addons can cause issues with browser captchas as they can intervene with our addon at any time and prohibit it from working correctly.
Excluding issues caused by firewalls:
Some firewalls are blocking some localhost related requests by default.
To sensure that that isn't the cause of your problem, temporarily disable your firewall and try again.
For users of browser addons "NoScript" or any kind of adblockers: Meet the following settings to ensure that these addons do not blick our browser solver:
- Disable NoScript for
http://127.0.0.1/
- Disable AdBlock for
http://127.0.0.1/ this may not be required
[Firefox users] Error "Invalid site key" or similar
You might be using an outdated version of our myjdownloader browser addon.
Sometimes, AV software is blocking the auto update of such browser addons.
Uninstall the myjdownloader addon and re-install it using the link provided on this page.
Workarounds for myjdownloader browser addon bugs: Use another browser for captcha solving
It can sometimes happen that there are bugs in our browser addon for a specific browser.
Because these addons are never updated at the same time and often have to go through a review process before they are released via the browsers' respective stores, it can be a good idea to at least temporarily switch the browser for testing.
E.g. you are having an issue with browser solving in Chrome: Install Firefox and check if it works then!
Auto-Click doesn't work
Auto-click is only available for reCaptcha captchas - it is not available for e.g. hcaptcha or any other browser captchas (see beginning of this article).
The following tools/settings can make auto-click fail:
- Software which interferes with your mouse e.g. screen capture applications or your systems magnifier application e.g. Windows magnifier/zoom
- Windows display scale setting is set to higher/lower value than 100%
Solution/workaround: Set your display scale setting back to 100%
Internal ticket: svn.jdownloader.org/issues/88375
- Multi monitor setups: If your mouse is on another monitor than the browser window where the click is supposed to happen that may fail. Workaround: Make sure that your mouse pointer is always in the same monitor where your browser captcha browser gets opened
- Using myjdownloader to control a JD instance that is running on another computer: Because the JDownloader client itself performs the auto-click, it can only work when the captcha is solved on the same device which runs JDownloader itself!
In case your issue is that auto-click keeps clicking on the wrong position, you may disable it as a workaround, see:
Settings -> Advanced Settings -> BrowserCaptchaSolver: Auto Click
Auto-Click happens before the captcha page has finished loading and thus misses the captcha
This should never happen and you should report this to our support!
There is still one possible workaround though.
Once the captcha is supposed to be loaded and rendered, JD is waiting a predefined amount of milliseconds before clicking the checkbox.
You can increase that time value:
Settings -> Advanced Settings -> BrowserCaptchaSolver: Auto Click Delay --> Set this to e.g. 5000 and try again
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