If you’re using Internet Explorer 9 or lower, or Opera 11.6 or lower, then you won’t be able to select multiple files at once from the file picker. You can still queue up multiple files for upload, you’ll just have to select them one at a time.
Why isn’t batch upload working on my browser?
If you’re using Internet Explorer 9 or lower, or Opera 11.6 or lower, then you won’t be able to select multiple files at once from the fil...