Mozilla Firefox is implementing a new policy requiring all browser extensions to disclose if they collect or transmit user data by November 3, 2025, to enhance transparency. This policy affects both new and existing extensions, aiming to improve user awareness and privacy assurances across the platform. #FirefoxExtensions #UserDataTransparency
Keypoints
- Starting November 3, 2025, all new Firefox extensions must declare data collection and transmission practices.
- Existing extensions have until mid-2026 to comply with the new disclosure requirements.
- Users will see notifications during extension installation indicating whether data is collected or transmitted.
- Extensions that fail to disclose data practices will undergo automated review failure and may be disabled.
- Developers are encouraged to voluntarily update older extensions to include transparency disclosures.