Flash file uploaders do not work

(written by Lawrence Krubner, however indented passages are often quotes)

This is the sharpest criticism I’ve heard against using Flash, and this seems to be pure fact, with no intent to criticize:

Problem: Less than half of Facebook users were able to successfully upload photos.

Solution: To boost uploads Facebook switched from java/flash Facebook file selector to the browser native file selector which increased uploads by 11%. They have also streamlined the upload process by taking out the Album Creation before the uploads.

Problem: The team found that of 85% who uploaded a photo would only upload one photo.

Solution: The team thought perhaps people don’t know how to hold down shift and select multiple photos to upload. The added a tip before the upload process begin on how to select multiple photos. The metric dropped from 85% to 40% just with that tip!

Source