Hi   ! Under   'Show Update History': Did you also   '''un'''check :   'Use a background service to install updates '   ? You could also set the values to three preferences in   'about:config'  to   'false': Type in the adress bar   '''about:config'''   (press Enter) (promise to be careful, if asked) Type in the search bar   '''app.update''' and look for the preferences : '''app.update.auo''' '''app.update.enabled''' '''app.update.silent''' and set their values to   '''false'''