Installation guide for AntiCaptcha plugin for Mozilla Firefox and Tor Browser

Dear users, our extension only supports Firefox from version 48 and above. Mozilla started following WebExtension standards with this version. Our plugin is specifically written for it and can't be translated into the old Mozilla format. That's why on elder versions of The Firefox AntiCaptcha extension either won't instal or will show a corruption error.

This is also why it doesn't work with Pale Moon and Seamonkey browsers. In short, they refused to implement a new standard to support old extensions and their special features. But our extension works quite well with theTorBrowser, which we use to test new releases.

Press button below to start.

Install the latest AntiCaptcha plugin for Mozilla Firefox and Tor Browser

Download latest version from a mirror web site

Download previous stable version (0.59)

Unfortunately, at the moment there is no new version of our extension available for Firefox in XPI format. Try using the ZIP archive from the link below.

Download AntiCaptcha plugin in ZIP format (version 0.67)

If you see the following error: "This add-on could not be installed because it has not been verified" or "Firefox has prevented this site from installing an unverified add-on" (or something like that), please go to theabout:config page in Firefox, find an xpinstall.signatures.required preference, and change it to false.

Press "Allow" to confirm installation from this website.

After downloading, press Install.

Plugin was installed and can be used after clicking the plugin icon in the top right corner and performing a little fine tuning.

Specify your Anti-captcha.com account key next to the lock icon. And then press "Save" to confirm the changes.

At that moment, the plugin will validate the entered key. If validation is successful, you'll see your balance, and the plugin icon in the top right corner will become colored.

Congratulations, the plugin is successfully installed, configured, and ready to use! Probably a good time to check out the How to Use tutorial.

In case of error, you can report your problem using our Feedback form. Feel free to use the same form to send us your suggestions.