Hi Gabka, have you turned on "privacy.resistFingerprinting" in about:config? That prevents sites from cleanly extracting images from an HTML canvas. Usually when Firefox has blocked clean extraction, a new icon appears next to the lock in the address bar that looks a bit like a picture. Click that icon to make an exception for the site, then try again.

See also:

• https://support.mozilla.org/en-US/kb/firefox-protection-against-fingerprinting

Thank you! I tried to be secure and I messed It up :D

This question has been locked because the original author has deleted their account. While you can no longer post new replies, the existing content remains available for reference.