- With BrowserId the user enters an email address, whereas with OpenId the user enters a URL. Most users already have an email address that they remember, and can type easily. With OpenId and its URLs, it's more complicated.
- With OpenId, you had to work out whether you had an OpenId or not. If not then you had to go and obtain one at a separate web site. With Mozilla Persona (an implementation of BrowserId) any email address you have will work.
BrowserId Better Than OpenId
I've been a long-time fan of OpenId, but I now think BrowserId is better. Here are the two main reasons why: