MV3 is actually a faster but less capable version.
With MV2, every request must be filtered with slow, JIT, garbage-collected JavaScript code. In MV3, filtering is handled by native browser code using the list provided by extensions. UserScripts could be used to modify the DOM, but that requires power users to manually enable it.
With MV2, every request must be filtered with slow, JIT, garbage-collected JavaScript code. In MV3, filtering is handled by native browser code using the list provided by extensions. UserScripts could be used to modify the DOM, but that requires power users to manually enable it.