Were you able to get this fixed? I am having an issue with Facebook as well, and it just recently started.
No, it is not fixed. I spent an hour with Adobe tech support and they could not help.
A friend attended Photoshop World in Las Vegas and told several produce developers and customer relations people with Adobe about the problem. They were unaware of it and said it was on the Facebook end, and they were trying to address it now that they were aware of it.
I am shocked I haven't heard from anyone else having the problem or who uses this very handy feature.
Any more feed back from this? I am having the exact same issue!
It is a very old problem discussed in various older threads, I believe already in CS4.
The short of it, due to rights management only a few countries where allowed for uploading to Facebook.
and a bit shorter, the Export module have been removed per Bridge CC so the option is no longer available.
Create an action in PS that save the images in the right size in a dedicated folder. Select the files you want and use menu tools / PS / Batch and choose the action to run on the selected files.
Then use FB to upload and choose the dedicated folder. As said, a Workaround.