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Comment by falcolas | Hacker News Reader

This is a bummer; using Safari:

Your browser is not supported. Unfortunately this browser does not support the web technology that powers Firefox Send. You’ll need to try another browser. We recommend Firefox!

It would be nice to know what web tech they are using that isn't supported. Whatever it is, Chrome works.

EDIT: It requires support for the AES-GCM key type, with a size of 128.

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From user eridius a couple days ago: "It's checking for window.crypto.subtle. Looks like Safari TP supports this. I believe the problem with Safari 10 is that it implemented an older version of the web cryptography standard." https://news.ycombinator.com/item?id=14904307

Well, it looks like Safari (and edge) do support it, but not the AES-GCM key type.

https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypt...

I'll leave it up to someone wiser than me to indicate if this is the proper choice. AES-GCM key type with a length of 128.

AES-GCM is great tbh. Authenticated encryption built into one.

Safari 10 supports an older version of Web Cryptography. 2 weeks ago on the WebKit Blog there was a post about the current state of Web Cryptography and the differences between the older version (that Safari 10 supports) and the new version (that Safari Technical Preview supports). And it says that the older Web Cryptography only supported AES-CBC but the new one supports AES-GCM.

https://webkit.org/blog/7790/update-on-web-cryptography/

https://github.com/mozilla/send/blob/master/docs/faq.md#why-...

On the earlier thread, it was determined that Safari uses a slightly older version of WebCrypto.

Mozilla Send works in Safari Tech Preview.

Using Edge I don't even get a "not supported" message. I just get hit with "something went wrong!" when both uploading or downloading.

We're seeing the Edge error too, though it wasn't there in earlier QA, so it's a bit mysterious. Hopeful that we'll have some remediation soon.

Source: I work on Test Pilot

Strangely it seems to work on iOS Safari, but that’s a bummer because I also use (macOS) Safari :(

[edit] Works in TP, lucky me.

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