The best Firefox ever https://blog.mozilla.org/blog/2017/06/13/faster-better-firefox/
Although I'm not a Firefox user these days I have to say I'm impressed by their last release. After years of ignorance followed by years of „we're not that slow really“ they finally got noticeably faster. It feels much less sluggy and websites which were slow on the older releases now feel much more responsive. Kudos!