use query parameter

app/lib/core/routing/routes.browser.dart

@@ -181,13 +181,17 @@ class TabTreeRoute extends GoRouteData with $TabTreeRoute {
 }
 
 class OpenSharedContentRoute extends GoRouteData with $OpenSharedContentRoute {
-  final Uri $extra;
+  final String sharedUrl;
 
-  const OpenSharedContentRoute(this.$extra);
+  const OpenSharedContentRoute({this.sharedUrl = 'about:blank'});
 
   @override
   Page<void> buildPage(BuildContext context, GoRouterState state) {
-    return DialogPage(builder: (_) => OpenSharedContent(sharedUrl: $extra));
+    return DialogPage(
+      builder: (_) => OpenSharedContent(
+        sharedUrl: Uri.tryParse(sharedUrl) ?? Uri.parse('about:blank'),
+      ),
+    );
   }
 }
 

app/lib/core/routing/routes.g.dart

@@ -710,27 +710,32 @@ mixin $TabTreeRoute on GoRouteData {
 
 mixin $OpenSharedContentRoute on GoRouteData {
   static OpenSharedContentRoute _fromState(GoRouterState state) =>
-      OpenSharedContentRoute(state.extra as Uri);
+      OpenSharedContentRoute(
+        sharedUrl: state.uri.queryParameters['shared-url'] ?? 'about:blank',
+      );
 
   OpenSharedContentRoute get _self => this as OpenSharedContentRoute;
 
   @override
-  String get location => GoRouteData.$location('/open_content');
+  String get location => GoRouteData.$location(
+    '/open_content',
+    queryParams: {
+      if (_self.sharedUrl != 'about:blank') 'shared-url': _self.sharedUrl,
+    },
+  );
 
   @override
-  void go(BuildContext context) => context.go(location, extra: _self.$extra);
+  void go(BuildContext context) => context.go(location);
 
   @override
-  Future<T?> push<T>(BuildContext context) =>
-      context.push<T>(location, extra: _self.$extra);
+  Future<T?> push<T>(BuildContext context) => context.push<T>(location);
 
   @override
   void pushReplacement(BuildContext context) =>
-      context.pushReplacement(location, extra: _self.$extra);
+      context.pushReplacement(location);
 
   @override
-  void replace(BuildContext context) =>
-      context.replace(location, extra: _self.$extra);
+  void replace(BuildContext context) => context.replace(location);
 }
 
 T? _$convertMapValue<T>(

app/lib/features/geckoview/features/browser/presentation/widgets/browser_modules/browser_view.dart

@@ -192,8 +192,10 @@ class _BrowserViewState extends ConsumerState<BrowserView>
             case TabIntentOpenSetting.ask:
               switch (sharedContent) {
                 case SharedUrl():
-                  final route = OpenSharedContentRoute(sharedContent.url);
-                  await router.push(route.location, extra: route.$extra);
+                  final route = OpenSharedContentRoute(
+                    sharedUrl: sharedContent.url.toString(),
+                  );
+                  await router.push(route.location);
                 case SharedText():
                   final route = SearchRoute(
                     tabType: