Just did a new install of 12.2 and a user account that existed before the new installation in firefox -> view - Toolbars -> no longer has the check box "Tabs on Top" showing up anymore. Created a user new user account and that account in firefox -> view -> Toolbars -> has the "Tabs on Top" option.

I am assuming it is a configuration file with the account that existed before the new installation if 12.2, but I am not able to find which file controls that setting.

Any ideas?

Thanks....