Hi fuzzynco,

Follow the following steps to disable auto-update on Firefox.

Tools -> Options -> Advanced -> Go to Update tab and uncheck the checkbox of Firefox.

Alternatively,

Type about:config on location bar.

Search for app.update.enabled and double click it to make it's boolean value false.

thanks that works as expected. I really wish the-powers-that-be would reconsider the new release in what feels like a quarterly schedule. The add-on dev's need lead time to rework their software to be compatible with the new version's changes.

There appears to be 3 different branches currently, couldn't the 'stable / production / release' branch be more like semi-annual or even annual so add-ons could be tested in the other two branch's to minimize incompatibility issues?