Comment 2 for bug 285756

Thank you for taking your time to report this bug and help make Ubuntu better. Your bug description is not clear that we can't understand what you mean to be a bug. Do you mean that in Edit > Preferences > Advanced > Updates, the Firefox updates are disabled while the other two (Installed Add ons and Search Engines) are not disabled? Do you mean to say that when you had marked "Ask what to do" for Firefox updates, it becomes disabled the next time you check?

Please check out bug #263566 which reports of similar issue. If you can confirm whether you are reporting the same issue here, I can mark this bug to be a duplicate of the bug.

But, as an information, Firefox updates happen through the distributions package update mechanism and not through the Firefox's update option present in the Advanced Preferences. This is to ensure that an upstream update do not break the changes being done in Ubuntu, and hence updates to Firefox through Ubuntu's package mechanism are suggested.