How to disable Mozilla Firefox upgrading.

Keep Mozilla Firefox from upgrading, edit profile - prefs.js

if the following isn't present in some form, add this line to stop upgrading.

user_pref("app.update.enabled", false);

Used to stop from upgrading past point where reference feature was killed by Mozilla bad design decision.

https://www.technipages.com/enable-disable-automatic-updates-in-firefox


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