How is this any different than native apps that offer the same functionality? The article is about facebook, not emacs. A native facebook apps is a much bigger

How is this any different than native apps that offer the same functionality? The article is about facebook, not emacs. A native facebook apps is a much bigger privacy concern. The native app still stores your data in the cloud so you don't control it. It still can be using 3rd party libraries that are doing more than their stated function. It can still be communicating with servers from all over the world. On top of all that it has raw packet access to your WiFi for scanning your entire network on all ports (web apps can't do that). It can scan for SSIDs to find your location (a web app can't do that). It can scan bluetooth to find out your location and/or proximity to others (a web app can't do that). On most OSes it can read most of your files (like say your private ssh keys) web apps can't do that. If you give it access to your photos to select one photo it can read all of them, web apps can't do that. On a web app you can easily add all kinds of mods via extensions to add or remove features because the web apps are based on a known structure (HTML). that's rarely true for native apps. For app in question, Facebook, see FBPurity as an example.