This would be a great example of user-first cross-platform data access, but for some reason this extension by Apple is slowing down Firefox and web-sites, and the question arises: Is this just bad engineering, or an attempt at malicious compliance ? E.g. Apple has to appear as if they support other platforms as well to prevent an anti-trust case, but they seem to either put too little effort into other platforms - or even sabotaging other platform by deliberately slowing them down.