Hey, sorry for taking so long to reply, life has been crazy.

You don't need to have the upload page open for the scheduled upload to go through, but you do need to have at least the browser open by that time. Since FABUI is a browser extension, it is only active while the browser itself is active.

So, if the browser isn't open, then the upload will remain on stand-by and will only go through as soon as you open up the browser again.