And yet here it is, available and working as a WebExtension more than a month before legacy add-ons go away. The process may look opaque, but as far as results,

And yet here it is, available and working as a WebExtension more than a month before legacy add-ons go away. The process may look opaque, but as far as results, I'm really not sure what more you want? We moved to WebExtensions specifically to fix the problem of constant breakage. Sure, it adds a layer of abstraction, but there's finally an explicit interface that we can commit to supporting. The legacy APIs were a monkeypatching free-for-all that prevented us from landing even minor improvements or refactors for fear of potentially breaking some add-on somewhere. Now that we have that interface, we can refactor without breaking add-ons.