diff --git a/lib/pleroma/web/activity_pub/object_validators/common_fixes.ex b/lib/pleroma/web/activity_pub/object_validators/common_fixes.ex
index 2e0f7a8a0..f34a4327f 100644
--- a/lib/pleroma/web/activity_pub/object_validators/common_fixes.ex
+++ b/lib/pleroma/web/activity_pub/object_validators/common_fixes.ex
@@ -96,23 +96,37 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes do
     Map.put(data, "to", to)
   end
 
-  def fix_quote_url(%{"quoteUrl" => _quote_url} = data), do: data
+  def fix_quote_url(%{"quoteUrl" => quote_url} = data) do
+    case normalize_object_id(quote_url) do
+      quote_url when is_binary(quote_url) -> Map.put(data, "quoteUrl", quote_url)
+      _ -> Map.delete(data, "quoteUrl")
+    end
+  end
 
   # Fedibird
   # https://github.com/fedibird/mastodon/commit/dbd7ae6cf58a92ec67c512296b4daaea0d01e6ac
   def fix_quote_url(%{"quoteUri" => quote_url} = data) do
-    Map.put(data, "quoteUrl", quote_url)
+    case normalize_object_id(quote_url) do
+      quote_url when is_binary(quote_url) -> Map.put(data, "quoteUrl", quote_url)
+      _ -> data
+    end
   end
 
   # Old Fedibird (bug)
   # https://github.com/fedibird/mastodon/issues/9
   def fix_quote_url(%{"quoteURL" => quote_url} = data) do
-    Map.put(data, "quoteUrl", quote_url)
+    case normalize_object_id(quote_url) do
+      quote_url when is_binary(quote_url) -> Map.put(data, "quoteUrl", quote_url)
+      _ -> data
+    end
   end
 
   # Misskey fallback
   def fix_quote_url(%{"_misskey_quote" => quote_url} = data) do
-    Map.put(data, "quoteUrl", quote_url)
+    case normalize_object_id(quote_url) do
+      quote_url when is_binary(quote_url) -> Map.put(data, "quoteUrl", quote_url)
+      _ -> data
+    end
   end
 
   def fix_quote_url(%{"tag" => [_ | _] = tags} = data) do
@@ -128,6 +142,11 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes do
 
   def fix_quote_url(data), do: data
 
+  defp normalize_object_id(object_id) when is_binary(object_id), do: object_id
+  defp normalize_object_id(%{"id" => object_id}) when is_binary(object_id), do: object_id
+  defp normalize_object_id([object_id | _]) when is_binary(object_id), do: object_id
+  defp normalize_object_id(_), do: nil
+
   # On Mastodon, `"likes"` attribute includes an inlined `Collection` with `totalItems`,
   # not a list of users.
   # https://github.com/mastodon/mastodon/pull/32007
diff --git a/test/fixtures/fedidev.fun/misskey_quote_list.json b/test/fixtures/fedidev.fun/misskey_quote_list.json
new file mode 100644
index 000000000..b9ea08691
--- /dev/null
+++ b/test/fixtures/fedidev.fun/misskey_quote_list.json
@@ -0,0 +1,28 @@
+{
+  "@context": [
+    "https://www.w3.org/ns/activitystreams"
+  ],
+  "type": "Create",
+  "id": "https://fedidev.fun/activity/misskey-quote-list",
+  "actor": "https://fedidev.fun/users/alice",
+  "to": [
+    "https://www.w3.org/ns/activitystreams#Public"
+  ],
+  "cc": [],
+  "published": "2025-11-21T14:43:53Z",
+  "object": {
+    "type": "Note",
+    "id": "https://fedidev.fun/objects/note-misskey-quote-list",
+    "attributedTo": "https://fedidev.fun/users/alice",
+    "to": [
+      "https://www.w3.org/ns/activitystreams#Public"
+    ],
+    "cc": [],
+    "published": "2025-11-21T14:43:53Z",
+    "content": "_misskey_quote attribute as list",
+    "_misskey_quote": [
+      "https://fedidev.fun/assets/note1.jsonap",
+      "https://fedidev.fun/assets/note2.jsonap"
+    ]
+  }
+}
diff --git a/test/fixtures/fedidev.fun/quote_uri_list.json b/test/fixtures/fedidev.fun/quote_uri_list.json
new file mode 100644
index 000000000..9245077e6
--- /dev/null
+++ b/test/fixtures/fedidev.fun/quote_uri_list.json
@@ -0,0 +1,28 @@
+{
+  "@context": [
+    "https://www.w3.org/ns/activitystreams"
+  ],
+  "type": "Create",
+  "id": "https://fedidev.fun/activity/quote-uri-list",
+  "actor": "https://fedidev.fun/users/alice",
+  "to": [
+    "https://www.w3.org/ns/activitystreams#Public"
+  ],
+  "cc": [],
+  "published": "2025-11-21T14:43:52Z",
+  "object": {
+    "type": "Note",
+    "id": "https://fedidev.fun/objects/note-quote-uri-list",
+    "attributedTo": "https://fedidev.fun/users/alice",
+    "to": [
+      "https://www.w3.org/ns/activitystreams#Public"
+    ],
+    "cc": [],
+    "published": "2025-11-21T14:43:52Z",
+    "content": "quoteUri attribute as list",
+    "quoteUri": [
+      "https://fedidev.fun/assets/note1.jsonap",
+      "https://fedidev.fun/assets/note2.jsonap"
+    ]
+  }
+}
diff --git a/test/fixtures/fedidev.fun/quote_url_list.json b/test/fixtures/fedidev.fun/quote_url_list.json
new file mode 100644
index 000000000..eecd0dd35
--- /dev/null
+++ b/test/fixtures/fedidev.fun/quote_url_list.json
@@ -0,0 +1,28 @@
+{
+  "@context": [
+    "https://www.w3.org/ns/activitystreams"
+  ],
+  "type": "Create",
+  "id": "https://fedidev.fun/activity/quote-url-list",
+  "actor": "https://fedidev.fun/users/alice",
+  "to": [
+    "https://www.w3.org/ns/activitystreams#Public"
+  ],
+  "cc": [],
+  "published": "2025-11-21T14:43:52Z",
+  "object": {
+    "type": "Note",
+    "id": "https://fedidev.fun/objects/note-quote-url-list",
+    "attributedTo": "https://fedidev.fun/users/alice",
+    "to": [
+      "https://www.w3.org/ns/activitystreams#Public"
+    ],
+    "cc": [],
+    "published": "2025-11-21T14:43:52Z",
+    "content": "quoteUrl attribute as list",
+    "quoteUrl": [
+      "https://fedidev.fun/assets/note1.jsonap",
+      "https://fedidev.fun/assets/note2.jsonap"
+    ]
+  }
+}
diff --git a/test/pleroma/web/activity_pub/transmogrifier/fedidev_fun_quote_url_list_test.exs b/test/pleroma/web/activity_pub/transmogrifier/fedidev_fun_quote_url_list_test.exs
new file mode 100644
index 000000000..9607fabdd
--- /dev/null
+++ b/test/pleroma/web/activity_pub/transmogrifier/fedidev_fun_quote_url_list_test.exs
@@ -0,0 +1,63 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.Transmogrifier.FedidevFunQuoteUrlListTest do
+  use Oban.Testing, repo: Pleroma.Repo
+  use Pleroma.DataCase
+
+  alias Pleroma.Object
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.Transmogrifier
+
+  import Pleroma.Factory
+
+  setup_all do
+    Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
+    :ok
+  end
+
+  defp ensure_remote_actor!(ap_id) when is_binary(ap_id) do
+    case User.get_cached_by_ap_id(ap_id) do
+      %User{} ->
+        :ok
+
+      _ ->
+        insert(:user,
+          local: false,
+          ap_id: ap_id,
+          follower_address: ap_id <> "/followers",
+          following_address: ap_id <> "/following",
+          featured_address: ap_id <> "/collections/featured",
+          inbox: ap_id <> "/inbox"
+        )
+
+        :ok
+    end
+  end
+
+  defp ingest_fixture!(rel_path) do
+    data = rel_path |> File.read!() |> Jason.decode!()
+    ensure_remote_actor!(data["actor"])
+
+    assert {:ok, activity} = Transmogrifier.handle_incoming(data)
+    object = Object.normalize(activity.data["object"], fetch: false)
+
+    {activity, object}
+  end
+
+  test "normalizes quoteUri list to the first object ID" do
+    {_activity, object} = ingest_fixture!("test/fixtures/fedidev.fun/quote_uri_list.json")
+    assert object.data["quoteUrl"] == "https://fedidev.fun/assets/note1.jsonap"
+  end
+
+  test "normalizes quoteUrl list to the first object ID" do
+    {_activity, object} = ingest_fixture!("test/fixtures/fedidev.fun/quote_url_list.json")
+    assert object.data["quoteUrl"] == "https://fedidev.fun/assets/note1.jsonap"
+  end
+
+  test "normalizes _misskey_quote list to the first object ID" do
+    {_activity, object} = ingest_fixture!("test/fixtures/fedidev.fun/misskey_quote_list.json")
+    assert object.data["quoteUrl"] == "https://fedidev.fun/assets/note1.jsonap"
+  end
+end