That's why I wrote this: "in true Google fashion Chrome team implemented and released at least three different APIs all having something to do with files." :)

That's why I wrote this: "in true Google fashion Chrome team implemented and released at least three different APIs all having something to do with files." :) I didn't want to dig through all of them on mobile when I was responding. Both Safari and Mozilla are open (and implement/have implemented) to Origin Private File System. Because it gives web sites an access to a file system without a chance of escaping and damaging user data. Can't remember which spec introduced it, and it doesn't really matter at this point. For the more general part of File System Access Mozilla's and Safari's positions are: nope. https://github.com/mozilla/standards-positions/issues/154 https://github.com/mozilla/standards-positions/issues/154 There was also Storage Foundation API but it was thankfully never shipped (it was like a third way of handling files or something),and also received negative responses: https://chromestatus.com/feature/5670244905385984 https://chromestatus.com/feature/5670244905385984