[bsznjyewgd]

This is already kind of the case. Debian stable tracks the Firefox ESR releases, updating when a new one comes out. If you want the Firefox frequent releases, you get them with backports from the Debian Mozilla team (out of the main archive).

(For the more adventurous desktop users, they can also use Debian unstable for the frequent releases. Unstable isn't unstable in terms of your machine falling over. Rather, there is a lot of package churn, and you need to use something like "sudo aptitude upgrade --visual-preview" when upgrading to ensure that you don't try to upgrade something in the middle of a big package transition before everything is finished and ready in the package repo.)