--- a/gfx/thebes/gfxPrefs.h
+++ b/gfx/thebes/gfxPrefs.h
@@ -506,17 +506,17 @@ private:
   DECL_GFX_PREF(Once, "layers.tiles.edge-padding",             TileEdgePaddingEnabled, bool, true);
   DECL_GFX_PREF(Live, "layers.tiles.fade-in.enabled",          LayerTileFadeInEnabled, bool, false);
   DECL_GFX_PREF(Live, "layers.tiles.fade-in.duration-ms",      LayerTileFadeInDuration, uint32_t, 250);
   DECL_GFX_PREF(Live, "layers.transaction.warning-ms",         LayerTransactionWarning, uint32_t, 200);
   DECL_GFX_PREF(Once, "layers.uniformity-info",                UniformityInfo, bool, false);
   DECL_GFX_PREF(Once, "layers.use-image-offscreen-surfaces",   UseImageOffscreenSurfaces, bool, true);
 
   DECL_GFX_PREF(Live, "layout.css.scroll-behavior.damping-ratio", ScrollBehaviorDampingRatio, float, 1.0f);
-  DECL_GFX_PREF(Live, "layout.css.scroll-behavior.enabled",    ScrollBehaviorEnabled, bool, false);
+  DECL_GFX_PREF(Live, "layout.css.scroll-behavior.enabled",    ScrollBehaviorEnabled, bool, true);
   DECL_GFX_PREF(Live, "layout.css.scroll-behavior.spring-constant", ScrollBehaviorSpringConstant, float, 250.0f);
   DECL_GFX_PREF(Live, "layout.css.scroll-snap.prediction-max-velocity", ScrollSnapPredictionMaxVelocity, int32_t, 2000);
   DECL_GFX_PREF(Live, "layout.css.scroll-snap.prediction-sensitivity", ScrollSnapPredictionSensitivity, float, 0.750f);
   DECL_GFX_PREF(Live, "layout.css.scroll-snap.proximity-threshold", ScrollSnapProximityThreshold, int32_t, 200);
   DECL_GFX_PREF(Live, "layout.css.touch_action.enabled",       TouchActionEnabled, bool, false);
   DECL_GFX_PREF(Live, "layout.display-list.dump",              LayoutDumpDisplayList, bool, false);
   DECL_GFX_PREF(Live, "layout.display-list.dump-content",      LayoutDumpDisplayListContent, bool, false);
   DECL_GFX_PREF(Live, "layout.event-regions.enabled",          LayoutEventRegionsEnabledDoNotUseDirectly, bool, false);

--- a/mobile/android/app/mobile.js
+++ b/mobile/android/app/mobile.js
@@ -49,23 +49,21 @@ pref("toolkit.zoomManager.zoomValues", "
 // Mobile will use faster, less durable mode.
 pref("toolkit.storage.synchronous", 0);
 
 pref("browser.viewport.desktopWidth", 980);
 // The default fallback zoom level to render pages at. Set to -1 to fit page; otherwise
 // the value is divided by 1000 and clamped to hard-coded min/max scale values.
 pref("browser.viewport.defaultZoom", -1);
 
-#ifdef MOZ_WIDGET_ANDROID
 // Show/Hide scrollbars when active/inactive
 pref("ui.showHideScrollbars", 1);
 pref("ui.useOverlayScrollbars", 1);
 pref("ui.scrollbarFadeBeginDelay", 450);
 pref("ui.scrollbarFadeDuration", 0);
-#endif
 
 /* turn off the caret blink after 10 cycles */
 pref("ui.caretBlinkCount", 10);
 
 /* cache prefs */
 pref("browser.cache.disk.enable", true);
 pref("browser.cache.disk.capacity", 20480); // kilobytes
 pref("browser.cache.disk.max_entry_size", 4096); // kilobytes

--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -3881,20 +3881,16 @@ pref("print.print_reversed", false);
 pref("print.print_color", true);
 pref("print.print_landscape", false);
 pref("print.print_paper_size", 0);
 
 // print_extra_margin enables platforms to specify an extra gap or margin
 // around the content of the page for Print Preview only
 pref("print.print_extra_margin", 0); // twips
 
-pref("layout.css.scroll-behavior.enabled", true);
-pref("layout.css.scroll-behavior.property-enabled", true);
-pref("layout.css.scroll-snap.enabled", true);
-
 /* PostScript print module prefs */
 // pref("print.postscript.enabled",      true);
 
 // Setting default_level_parent to true makes the default level for popup
 // windows "top" instead of "parent".  On GTK2 platform, this is implemented
 // with override-redirect windows which is the normal way to implement
 // temporary popup windows.  Setting this to false would make the default
 // level "parent" which is implemented with managed windows.