Bug 1680156 - Actually enable pages_per_sheet properly r=emalysz

Differential Revision: https://phabricator.services.mozilla.com/D99169

modules/libpref/init/StaticPrefList.yaml

@@ -9030,13 +9030,13 @@
 # The tab modal print dialog is currently only for early beta or nightly.
 - name: print.tab_modal.enabled
   type: RelaxedAtomicBool
-  value: true
+  value: @IS_EARLY_BETA_OR_EARLIER@
   mirror: always
 
 # Whether the pages per sheet print setting is enabled.
 - name: print.pages_per_sheet.enabled
   type: RelaxedAtomicBool
-  value: false
+  value: true
   mirror: always
 
 # Whether we allow the print progress dialog to show up.