Some people are concerned about the connections Firefox makes to the Internet, especially when those connections are made for no apparent reason (see Mozilla's Firefox Browser Privacy Notice for additional information).
This article explains various reasons why Firefox may make a connection to the Internet and how you can stop it from doing so, if you wish.
The steps below are going to change a setting in the Firefox Web browser on your desktop or laptop computer.
Once you have completed these steps, Firefox will no longer automatically install updates as they become available.
Many programs, including the Firefox Web browser, have a default setting where updates are automatically installed as they become available.
But you may have a situation where automatically installing Firefox updates is not preferable.
I deleted everything I could find on my computer Mozilla related, re-installed version 51, checked the box to not update and checked daily to make sure that there were no pending updates.
I ran it for about a week just fine, but then it crashed and when it restarted, it was on version 53.
So, I do something like this: So far so good, but unfortunately, as soon as I click Alt / Help / About Firefox, the damn thing starts updating: ...
and it doesn't even ask me, which I find extremely disrespectful.
When that happens, some of your add-ons may stop working.