OptMeowt is a Firefox extension designed to bolster user privacy by automating the sending of Global Privacy Control (GPC) signals. This tool is particularly useful for individuals concerned about the sale and sharing of personal information, especially in light of new privacy regulations such as the California Consumer Privacy Act (CCPA). The extension operates seamlessly in the background, sending user preferences to websites upon visit, thereby helping to manage data privacy effectively.

The subscription-based service is categorized under Security & Privacy, specifically Anti-Spam & Anti-Spy. With a commitment to user data security, OptMeowt does not collect any personal information nor does it share data with third parties. It requires certain permissions solely for the purpose of opting users out of data sharing, ensuring that privacy is maintained throughout the browsing experience.