What Is Uniquecaptcha.com?
If https://uniquecaptcha.com/… is opening on your browser periodically and prompts you to enable notifications from that site, that is a result of adware getting into your system. Most likely this adware have been downloaded together with some pirated software or a file you’ve got from a shady source. The adware might alter Google Chrome’s Group Policy so that notifications on Chrome are “enforced by administrator” and are impossible to disable via settings. You may follow this step-by-step guide to uninstall the adware and remove Uniquecaptcha.com pop-ups and notifications from your browser.