When ever I go update Firefox or Waterfox for that matter, I do a backup and then install the latest browser and if it has bugs or the normal webpages I visit don't work or like here people say something is wrong I will stay on the version before.
I just entered them manually until I realized {thanks to some helpful members}that it was a firefox bug.I am updated on firefox but Thanks to HeffeD for the extension tip,very nice!!!