Mozilla is set to introduce a new requirement for Firefox extensions starting from November 3, 2025. As per the new policy, all Firefox extensions will be required to disclose their data collection practices openly. Even if an extension does not collect any data, it will still need to mention this in its manifest file. The information will be visible to users during the installation process and in the extensions manager. Extensions that fail to comply with this new requirement will be blocked, as Mozilla wants users to have control over their data and make informed decisions about which extensions to trust. This move is aimed at promoting transparency and user trust in the Firefox ecosystem.