Apple Safari introduced support for MV3 in version 15.4 and while Apple has not indicated whether it intends to drop support for MV2, it removed the blocking WebRequest API years ago. That's likely to be the case for Microsoft Edge, which has endorsed MV3. That advice won't be viable as of January, when Manifest v2-based extensions will stop working in Chrome. Translation: We made them too powerful, we'll cram this genie back in its bottle CONTEXT This approach avoids presenting the extension user with an installation warning that the installed code can 'Read and change all your data on all websites' – which may sound scary but is generally what you want when using an add-on that cleans up all the webpages you visit.īut this 'permission-less' approach means the extension cannot carry out operations supported by uBlock Origin, such as custom JavaScript injection or filtering of redirects, CSP (content security policy) directives, URL parameters, and cosmetic page elements.

This function replaces the webRequest API from MV2, which allows a JavaScript event handler to modify network requests and has been the primary mechanism for intercepting unwanted network content.Īs Hill explains in his commit text, his extension uses declarativeNetRequest to conform with Google's stated goal for MV3 to not require the broad 'read/modify data' permission.

UBO Minus relies on the declarativeNetRequest API in MV3 to block content. Makers of ad blockers and browser privacy extensions fear the end is near FULL STORY

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