Firefox shows the content of that folder, so you need to remove items from that folder that you no longer want to appear on this list.

Yes, that is what I cannot seem to be able to do! I can right click on the folder and highlight everything, but there is no option to "Clear the list" or to " Delete All". Thank you for trying to help.

You need to open that folder in Windows Explorer and clear up that folder by removing the files that you do already have uploaded and possibly move them to another folder.

This is an open page in Firefox just like you have been surfing, only it is Severak pages of all ,the files you have uploaded to another computer. In this case an IPad. You type in the IP address and connect; like to your printer, etc. I even removed Fireox yesterday, rebooted and then re installed Firefox. When I typed in the web address or IP address up came the list of all the files! Really confusing as to how to clear it. Sorry you couldn't help.

Do you mean that this web page shows a list of files that are already on the web server because you already have uploaded them?

If you open a web page via FTP or there is no index.html file or another html file then you see a directory listing that shows all the files in that location, just like with browsing a directory on the hard drive.