Comment 82 for bug 10910

the problem (as I experience it, years from its first report), is that I set "Paper size" in Firefox "Page Settings"
and this setting is lost every time Firefox is updated (as far as I can tell). I think it should retain the settings made by the user after each update. Those are the settings the user has made. That is what the user wants. How hard can that be? The suggestions about setting it based on the locale are poor ones,
because the printer page size might not be determined by locale. (For instance, it is not unusual these days in large companies in the United States to have A4 printers set up.) An "upgrade" and especially a plain "update" should not change user settings, unless those conflict in some deep way with something in the upgrade or update, and I'd take some convincing that could ever be the case here.