Nightly.app是个啥

Nightly.app位于系统设置的默认浏览器列表里，哪哪都找不到，后来用/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -dump | grep -i nightly查了下找到了这个：/Users/<me>/Library/Caches/ms-playwright/firefox-1482/firefox/Nightly.app

这个缓存是Python的playwright库生成的！可以直接删除，我直接删除了！

Nightly.app is a bundled browser binary downloaded by Microsoft Playwright. Playwright downloads its own copies of browsers (including a Nightly-like build of Mozilla Firefox) into ~/Library/Caches/ms-playwright/.

Nightly.app is a real macOS app bundle, it registers itself as capable of handling http/https, So macOS adds it to the default browser list.