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by jordan0day 4821 days ago
The UX isn't perfect, but Persona does have a few advantages that ultimately make it better for the end user:

1) Doesn't require a popup. The idea with Persona is that browser developers would build a Persona/BrowserID-type dialog directly into the browser, as opposed to requiring a popup/webpage. This may help mitigate phishing.

2) Better privacy for the end user. With other, uri callback-based systems, your IdP's know what sites/services you're accessing. With Persona, this becomes a bit more difficult, as there is no callback mechanism.