The version string you quoted reads “really60.9.0esr” after the first version number. This is because the Firefox version used in PureOS has been rolled back from 68 to 60, for an explanation see
The version string you quoted reads “really60.9.0esr” after the first version number. This is because the Firefox version used in PureOS has been rolled back from 68 to 60, for an explanation see