QUEST3+ System is only compatible with Mozilla Firefox Version 45 to version 51. Please uninstall version 52 and above and reinstall with following firefox version :
How To Disable Auto-Update on Firefox
Firefox occasionally checks to see if any updates are available for itself and for your search engines. To disable these checks:
- Click the menu button and choose Options.
- Select the Advanced panel.
- Select the Update tab.
- Check Never check for updates (not recommended: security risk) and uncheck Search Engines.
- Close the about:preferences page. Any changes you've made will automatically be saved.