On a website I sometimes visit, I will occasionally upload images to share. Recently, I was using network access to upload images from a different computer, but that machine started acting up, and so Firefox tries to re-open the shared folder I was using on that other machine if I try to upload a file and cannot connect, so the file selection doesn't show up and I cannot use any other controls, just get the error SFX instead and I have to restart Firefox by closing it using Task Manager in order to restore function. How do I reset what folder it tries to open for file upload so it does not try to open that inaccessible network folder? It softlocks every time now.