Just as your operating systems need to be patched, so do your browsers. Mozilla recently disclosed a critical vulnerability in Firefox, and advises all users to patch it immediately:

If Firefox is configured to update automatically, patching is as simple as restarting your browser. Users should verify they are running at least version 72.0.1. For your reference Mozilla provides instructions for updating and verification here

Thanks to BigFix, IT User Support is able to identify vulnerable software running on LBL systems. If you wish to receive proactive communications regarding the health of your computer, you can Download BigFix and install it. If you have further questions about BigFix, please Request Help.

Lastly, users should follow IT Best Practices to ensure computer health.