diff --git a/changelog.d/bookmark-folders.ignore b/changelog.d/bookmark-folders.ignore
new file mode 100644
index 000000000..8705ac00b
--- /dev/null
+++ b/changelog.d/bookmark-folders.ignore
@@ -0,0 +1 @@
+Various bookmark folders-related improvements
diff --git a/docs/development/API/differences_in_mastoapi_responses.md b/docs/development/API/differences_in_mastoapi_responses.md
index 052b2716b..0d6fc09c8 100644
--- a/docs/development/API/differences_in_mastoapi_responses.md
+++ b/docs/development/API/differences_in_mastoapi_responses.md
@@ -74,7 +74,7 @@ Pleroma does not process remote images and therefore cannot include fields such
 
 The `GET /api/v1/bookmarks` endpoint accepts optional parameter `folder_id` for bookmark folder ID.
 
-The `POST /api/v1/statuses/:id/bookmark` endpoint accepts optional parameter `folder_id` for bookmark folder ID.
+The `POST /api/v1/statuses/:id/bookmark` endpoint accepts optional parameter `folder_id` for bookmark folder ID. Bookmarking an already bookmarked post will update the folder association, or remove it if `folder_id` is omitted or `null`.
 
 ## Accounts
 
diff --git a/lib/pleroma/bookmark.ex b/lib/pleroma/bookmark.ex
index 1a2a63b82..1c78d495f 100644
--- a/lib/pleroma/bookmark.ex
+++ b/lib/pleroma/bookmark.ex
@@ -19,7 +19,7 @@ defmodule Pleroma.Bookmark do
   schema "bookmarks" do
     belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
     belongs_to(:activity, Activity, type: FlakeId.Ecto.CompatType)
-    belongs_to(:folder, BookmarkFolder, type: FlakeId.Ecto.CompatType)
+    belongs_to(:folder, BookmarkFolder, type: FlakeId.Ecto.Type)
 
     timestamps()
   end
@@ -38,7 +38,7 @@ defmodule Pleroma.Bookmark do
     |> validate_required([:user_id, :activity_id])
     |> unique_constraint(:activity_id, name: :bookmarks_user_id_activity_id_index)
     |> Repo.insert(
-      on_conflict: [set: [folder_id: folder_id]],
+      on_conflict: [set: [folder_id: folder_id, updated_at: NaiveDateTime.utc_now()]],
       conflict_target: [:user_id, :activity_id]
     )
   end
@@ -76,11 +76,4 @@ defmodule Pleroma.Bookmark do
     |> Repo.one()
     |> Repo.delete()
   end
-
-  def set_folder(bookmark, folder_id) do
-    bookmark
-    |> cast(%{folder_id: folder_id}, [:folder_id])
-    |> validate_required([:folder_id])
-    |> Repo.update()
-  end
 end
diff --git a/lib/pleroma/bookmark_folder.ex b/lib/pleroma/bookmark_folder.ex
index 14d37e197..65856bb29 100644
--- a/lib/pleroma/bookmark_folder.ex
+++ b/lib/pleroma/bookmark_folder.ex
@@ -14,7 +14,7 @@ defmodule Pleroma.BookmarkFolder do
   alias Pleroma.User
 
   @type t :: %__MODULE__{}
-  @primary_key {:id, FlakeId.Ecto.CompatType, autogenerate: true}
+  @primary_key {:id, FlakeId.Ecto.Type, autogenerate: true}
 
   schema "bookmark_folders" do
     field(:name, :string)
diff --git a/lib/pleroma/web/api_spec/schemas/bookmark_folder.ex b/lib/pleroma/web/api_spec/schemas/bookmark_folder.ex
index e8b4f43b7..f5ce9e8a1 100644
--- a/lib/pleroma/web/api_spec/schemas/bookmark_folder.ex
+++ b/lib/pleroma/web/api_spec/schemas/bookmark_folder.ex
@@ -15,12 +15,18 @@ defmodule Pleroma.Web.ApiSpec.Schemas.BookmarkFolder do
     properties: %{
       id: FlakeID,
       name: %Schema{type: :string, description: "Folder name"},
-      emoji: %Schema{type: :string, description: "Folder emoji", nullable: true}
+      emoji: %Schema{type: :string, description: "Folder emoji", nullable: true},
+      emoji_url: %Schema{
+        type: :string,
+        description: "URL of the folder emoji if it's a custom emoji, null otherwise",
+        nullable: true
+      }
     },
     example: %{
       "id" => "9toJCu5YZW7O7gfvH6",
       "name" => "Read later",
-      "emoji" => nil
+      "emoji" => nil,
+      "emoji_url" => nil
     }
   })
 end
diff --git a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
index db2b61b3c..26e38aac8 100644
--- a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
@@ -81,10 +81,8 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
 
   plug(OAuthScopesPlug, %{scopes: ["write:accounts"]} when action in [:pin, :unpin])
 
-  # Note: scope not present in Mastodon: read:bookmarks
   plug(OAuthScopesPlug, %{scopes: ["read:bookmarks"]} when action == :bookmarks)
 
-  # Note: scope not present in Mastodon: write:bookmarks
   plug(
     OAuthScopesPlug,
     %{scopes: ["write:bookmarks"]} when action in [:bookmark, :unbookmark]
diff --git a/lib/pleroma/web/pleroma_api/controllers/bookmark_folder_controller.ex b/lib/pleroma/web/pleroma_api/controllers/bookmark_folder_controller.ex
index 6d6e2e940..55f323a16 100644
--- a/lib/pleroma/web/pleroma_api/controllers/bookmark_folder_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/bookmark_folder_controller.ex
@@ -10,10 +10,8 @@ defmodule Pleroma.Web.PleromaAPI.BookmarkFolderController do
 
   plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
-  # Note: scope not present in Mastodon: read:bookmarks
   plug(OAuthScopesPlug, %{scopes: ["read:bookmarks"]} when action == :index)
 
-  # Note: scope not present in Mastodon: write:bookmarks
   plug(
     OAuthScopesPlug,
     %{scopes: ["write:bookmarks"]} when action in [:create, :update, :delete]
diff --git a/lib/pleroma/web/pleroma_api/views/bookmark_folder_view.ex b/lib/pleroma/web/pleroma_api/views/bookmark_folder_view.ex
index 29028781f..ddffa25d3 100644
--- a/lib/pleroma/web/pleroma_api/views/bookmark_folder_view.ex
+++ b/lib/pleroma/web/pleroma_api/views/bookmark_folder_view.ex
@@ -9,11 +9,13 @@ defmodule Pleroma.Web.PleromaAPI.BookmarkFolderView do
   alias Pleroma.Emoji
 
   def render("show.json", %{folder: %BookmarkFolder{} = folder}) do
+    {emoji, emoji_url} = get_emoji(folder.emoji)
+
     %{
       id: folder.id |> to_string(),
       name: folder.name,
-      emoji: folder.emoji,
-      emoji_url: get_emoji_url(folder.emoji)
+      emoji: emoji,
+      emoji_url: emoji_url
     }
   end
 
@@ -21,20 +23,15 @@ defmodule Pleroma.Web.PleromaAPI.BookmarkFolderView do
     render_many(folders, __MODULE__, "show.json", Map.delete(opts, :folders))
   end
 
-  defp get_emoji_url(nil) do
-    nil
-  end
+  defp get_emoji(nil), do: {nil, nil}
 
-  defp get_emoji_url(emoji) do
+  defp get_emoji(emoji) do
     if Emoji.unicode?(emoji) do
-      nil
+      {emoji, nil}
     else
-      emoji = Emoji.get(emoji)
-
-      if emoji != nil do
-        Emoji.local_url(emoji.file)
-      else
-        nil
+      case Emoji.get(emoji) do
+        nil -> {nil, nil}
+        emoji_data -> {emoji, Emoji.local_url(emoji_data.file)}
       end
     end
   end