I read that the HTML5 spec introduced the ability to select multiple files in an upload form. What browsers currently support this? Does Adobe AIR support it?
Bonus question: Is there a JavaScript library that takes advantage of this functionality?
Firefox 3.6, soon to be released, will have it as well, along with some other file-related goodies:
http://hacks.mozilla.org/2009/12/multiple-file-input-in-firefox-3-6/
It is also supported by Chrome 3.
I have no info on Adobe Air, but it might be so, since the feature has been in Webkit nightly for more than a year.
Opera has supported this feature since 2006.
afaik Safari 4 is the only browser that supports this feature. I dont know about your other questions.
Chome developer builds now support this attribute! :)
来源：https://stackoverflow.com/questions/1971613/multiple-file-uploader-in-html5-browser-support