I don't want to switch my browser to Chrome. I do want to upload music files to u tube music for my library there. Process is to open the u tube music library file and click on uploads and drag files from windows onto the page and it will upload. My problem is when I do this, the file I drag over shows a red circle with a line through it and will not upload to u tube music. It is the correct file type MP3. Is there a setting within firefox that I can change that could be preventing me from doing this? thanks. brian [https://support.google.com/youtubemusic/answer/9716522?hl=en u tube music]