There are many reasons to update Firefox to the latest version. Usually, you do this when the browser is not working properly. Another reason is that with each release, hundreds of bugs are fixed, preventing problems from ever happening to you.
What's New in Mozilla Firefox 124
Updating Firefox to the latest version is easy. Here’s how:
To force the latest update, download and install Firefox directly from Mozilla:
Check your update settings in Firefox via the menu bar at the top right. Go to Settings > General > Firefox Updates. There is an option to always keep the browser up to date.