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So much so that privacy advocates the EFF called Chrome’s Manifest V3 “ deceitful and threatening.”
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Content blocking is one of the most important use cases for extensions, and we are committed to ensuring that Firefox users have access to the best privacy tools available.” We will continue to work with content blockers and other key consumers of this API to identify current and future alternatives where appropriate. To maximize compatibility with other browsers, we will also ship support for declarativeNetRequest. “Mozilla will maintain support for blocking WebRequest in MV3. However, this will limit the capabilities of certain types of privacy extensions without adequate replacement. Unfortunately, that power has also been used to harm users in a variety of ways Chrome’s solution in MV3 was to define a more narrowly scoped API (declarativeNetRequest) as a replacement. “One of the most controversial changes of Chrome’s MV3 approach is the removal of blocking WebRequest, which provides a level of power and flexibility that is critical to enabling advanced privacy and content blocking features.
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