diff --git a/components/style/gecko/media_queries.rs b/components/style/gecko/media_queries.rs
index 25ce9f5b3a1..1724f1605e4 100644
--- a/components/style/gecko/media_queries.rs
+++ b/components/style/gecko/media_queries.rs
@@ -310,6 +310,15 @@ impl Device {
 
     /// Returns safe area insets
     pub fn safe_area_insets(&self) -> SideOffsets2D<f32, CSSPixel> {
-        SideOffsets2D::zero()
+        let pc = match self.pres_context() {
+            Some(pc) => pc,
+            None => return SideOffsets2D::zero(),
+        };
+        let mut top = 0.0;
+        let mut right = 0.0;
+        let mut bottom = 0.0;
+        let mut left = 0.0;
+        unsafe { bindings::Gecko_GetSafeAreaInsets(pc, &mut top, &mut right, &mut bottom, &mut left) };
+        SideOffsets2D::new(top, right, bottom, left)
     }
 }