After the most recent FF update, I cannot upload photos from File Explorer to Ancestry.com gallery. I open a photo file to begin the upload process to Ancestry but my monitor goes grey, I cannot use the cursor or click on anything. A big blue circle goes around slowly so my only way out is Esc and it says Firefox is not responding and asks if I want to close the program which I do. I have retried uploading several times and each time it fails. I did a disk cleanup, a system clean up, cleared history, cache and cookies, troubleshooters; all of things+ that are recommended to fix the problem. Command prompt isn't something I use but if I have to, I will. I need get a fix for the not responding issue, otherwise I have to put my family tree on hold indefinitely. Thanks.