This add-on adds a new option to the Tools menu called "Uploads" that displays a small window, similar to the downloads, but displaying only current uploads in progress. The uploads are automatically removed from the window after they finish. The idea is to have a way to know the progress of your file uploads and an estimated remaining time to finish.
Also a progress bar is added to the status bar when there are uploads in progress, indicating the total percent and the number of transfers in its tooltip. The progress bar is also automatically hidden when the uploads are finished.