So, one of our terminal servers randomly updated to firefix 58 even though i have the config file to updates disabled. that's another problem for another day but right now i can't get firefox 57 or 58 to load. on FF57 i had to add the following lines to get to websites without the browser crashing: lockPref("browser.tabs.remote.autostart",false); lockPref("browser.tabs.remote.autostart.2", false); after i added these it used to work, now that FF58 has taken over my FF no longer reads the config. i deleted everything in the config down to just: //first line is worthless lockPref("app.update.enabled", false); it still isn't working. it just tells me it failed to read the config. obviously i can delete the autoconfig.js which is: //apparently it doesn't read the first line pref("general.config.filename", "mozilla.cfg"); pref("general.config.obscure_value", 0); however the browser crashes constantly preventing anyone from going to websites. i tried to just uninstall FF58 delete the program files, install 57 but this doesn't appear to work. the first time i did it the stupid thing auto updated to 58 so i uninstalled again tried to install 57 again and it just crashes constantly. i'm about to completely remove Firefox from our environment the instability of this application is getting crazy.