For the official (a popular Firefox and Opera extension), the activation process for Pro features is as follows:

: Many crack distribution networks are front for ransomware. Clicking the wrong download link can instantly encrypt your personal files, demanding hundreds of dollars to unlock them.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

To unlock Pro features, users enter the exact email used to make the donation into the extension's settings. No third-party key generators or lists are real.

Even worse, the sites promising "Free Pro Keys" often bundle their downloads with . Risking your entire laptop's security for a $10 browser extension is a bad trade. How to Get Pro (The Right Way)

: A dedicated desktop application available for Windows, macOS, and Linux.