How do you delete names from firefox sync? For some reason firefox created a duplicate account for my computer . I suspect it is from my old computer, which I no longer have. I think it is my old computer because I changed the name on my new computer in the sync settings and the other account stayed the same name, while the new one updated to the new name. I tried uploading a screenshot from my phone but for some reason it isn't uploading. Is there another way to delete that account using my current computer?