--- a/dom/canvas/WebGL2ContextQueries.cpp
+++ b/dom/canvas/WebGL2ContextQueries.cpp
@@ -186,16 +186,20 @@ WebGLContext::GetQuery(JSContext* cx, GL
                 // INVALID_ENUM.
                 return;
             }
 
             const auto& slot = ValidateQuerySlotByTarget(funcName, target);
             if (!slot || !*slot)
                 return;
 
+            const auto& query = *slot;
+            if (target != query->Target())
+                return;
+
             JS::Rooted<JS::Value> v(cx);
             dom::GetOrCreateDOMReflector(cx, slot->get(), &v);
             retval.set(v);
         }
         return;
 
     case LOCAL_GL_QUERY_COUNTER_BITS_EXT:
         if (!IsExtensionEnabled(WebGLExtensionID::EXT_disjoint_timer_query))