diff --git a/crates/ui-egui/src/panels/bookmarks.rs b/crates/ui-egui/src/panels/bookmarks.rs
index ccc45d4eb0..2a92a4c227 100644
--- a/crates/ui-egui/src/panels/bookmarks.rs
+++ b/crates/ui-egui/src/panels/bookmarks.rs
@@ -88,6 +88,24 @@ pub(crate) fn ellipsized_prefix(text: &str, mut fits: impl FnMut(&str) -> bool)
     }
 }
 
+/// The inline rename field (#5529). On the frame it takes focus it selects the whole title, so
+/// typing replaces the old text at once; later frames leave the user's own caret and selection
+/// alone. Same pattern as the zoom box in `chrome.rs`.
+fn rename_field(ui: &mut egui::Ui, text: &mut String, id: egui::Id) -> egui::Response {
+    let first_frame = !ui.memory(|m| m.has_focus(id));
+    let resp = ui.add(crate::widgets::line(text).desired_width(ui.available_width() - 8.0).id(id));
+    if !resp.has_focus() && !resp.lost_focus() {
+        if first_frame {
+            let mut state = egui::TextEdit::load_state(ui.ctx(), id).unwrap_or_default();
+            let all = egui::text::CCursorRange::two(egui::text::CCursor::new(0), egui::text::CCursor::new(text.chars().count()));
+            state.cursor.set_char_range(Some(all));
+            state.store(ui.ctx(), id);
+        }
+        resp.request_focus();
+    }
+    resp
+}
+
 /// How a bookmark's title is drawn: in its own style and colour (ISO 32000-2 §12.3.3, Tables 151
 /// and 152), bold in the heavier face and italic slanted, its colour kept readable on the panel.
 /// Top-level bookmarks without a style keep the medium face.
@@ -138,11 +156,7 @@ pub(super) fn outline_item(
         ui.horizontal(|ui| {
             ui.add_space(x_text);
             crate::widgets::begin_dialog(ui);
-            let edit = crate::widgets::line(text).desired_width(ui.available_width() - 8.0).id(id.with("rename"));
-            let resp = ui.add(edit);
-            if !resp.has_focus() && !resp.lost_focus() {
-                resp.request_focus();
-            }
+            let resp = rename_field(ui, text, id.with("rename"));
             if ui.input(|i| i.key_pressed(egui::Key::Escape)) {
                 cancel = true;
             } else if resp.lost_focus() {
@@ -360,3 +374,66 @@ mod bookmark_filter {
         assert!(outline_matches(&outline, &fold("izmir")).is_empty());
     }
 }
+
+#[cfg(test)]
+mod rename_field {
+    use super::rename_field as field;
+
+    fn cursor_range(ctx: &egui::Context, id: egui::Id) -> Option<(usize, usize)> {
+        egui::TextEdit::load_state(ctx, id)
+            .and_then(|s| s.cursor.char_range())
+            .map(|r| (r.primary.index.0.min(r.secondary.index.0), r.primary.index.0.max(r.secondary.index.0)))
+    }
+
+    /// #5529: the rename field opens with the whole title selected, so typing replaces it.
+    #[test]
+    fn first_focus_selects_the_whole_title() {
+        let ctx = egui::Context::default();
+        let id = egui::Id::unique("bm-rename-test");
+        let mut text = String::from("Untitled");
+        for _ in 0..2 {
+            let output = ctx.run_ui(egui::RawInput::default(), |ui| {
+                field(ui, &mut text, id);
+            });
+            output.drop_without_applying_deltas();
+        }
+        assert_eq!(cursor_range(&ctx, id), Some((0, 8)));
+        assert!(ctx.memory(|m| m.has_focus(id)), "the field takes focus");
+    }
+
+    /// A Unicode title is counted in characters, not bytes.
+    #[test]
+    fn a_multibyte_title_is_selected_in_characters() {
+        let ctx = egui::Context::default();
+        let id = egui::Id::unique("bm-rename-unicode");
+        let mut text = String::from("図面（一階平面図）");
+        let output = ctx.run_ui(egui::RawInput::default(), |ui| {
+            field(ui, &mut text, id);
+        });
+        output.drop_without_applying_deltas();
+        assert_eq!(cursor_range(&ctx, id), Some((0, 9)));
+    }
+
+    /// A later frame must not reset the selection the user made; a caret stays a caret.
+    #[test]
+    fn a_later_frame_keeps_the_users_selection() {
+        let ctx = egui::Context::default();
+        let id = egui::Id::unique("bm-rename-keep");
+        let mut text = String::from("Chapter");
+        for _ in 0..2 {
+            let output = ctx.run_ui(egui::RawInput::default(), |ui| {
+                field(ui, &mut text, id);
+            });
+            output.drop_without_applying_deltas();
+        }
+        // The user moves the caret to 3 with no selection.
+        let mut state = egui::TextEdit::load_state(&ctx, id).unwrap_or_default();
+        state.cursor.set_char_range(Some(egui::text::CCursorRange::one(egui::text::CCursor::new(3))));
+        state.store(&ctx, id);
+        let output = ctx.run_ui(egui::RawInput::default(), |ui| {
+            field(ui, &mut text, id);
+        });
+        output.drop_without_applying_deltas();
+        assert_eq!(cursor_range(&ctx, id), Some((3, 3)), "the user's caret is kept");
+    }
+}
diff --git a/crates/ui-egui/tests/it/bookmarks.rs b/crates/ui-egui/tests/it/bookmarks.rs
index 1f07102a18..d5cd5efd2f 100644
--- a/crates/ui-egui/tests/it/bookmarks.rs
+++ b/crates/ui-egui/tests/it/bookmarks.rs
@@ -119,6 +119,40 @@ fn the_panel_keeps_its_width_while_the_pointer_moves() {
     assert_eq!(panel_width(&h), before, "the Bookmarks panel drifted wider");
 }
 
+/// #5529: the title is selected when the rename editor opens, so typing replaces it at once,
+/// with no Ctrl+A. New bookmarks and double-click rename both get this.
+#[test]
+fn typing_replaces_the_title_when_the_editor_opens() {
+    let mut h = harness();
+    h.key_press_modifiers(Modifiers::COMMAND, Key::B);
+    h.run_steps(3);
+    field(&h, "Untitled").type_text("Intro"); // the whole default is replaced
+    h.key_press(Key::Enter);
+    h.run_steps(3);
+    assert_eq!(outline(&h), [("Intro".into(), Some(0), 0)]);
+
+    menu(&mut h, "Intro", "Rename");
+    field(&h, "Intro").type_text("Introduction");
+    h.key_press(Key::Enter);
+    h.run_steps(3);
+    assert_eq!(outline(&h)[0].0, "Introduction");
+}
+
+/// The selection is one-shot: after the user collapses it to a caret, later frames must not
+/// reselect, so typing at that caret inserts.
+#[test]
+fn a_rename_editor_keeps_the_users_caret_across_frames() {
+    let mut h = harness();
+    h.key_press_modifiers(Modifiers::COMMAND, Key::B);
+    h.run_steps(3);
+    h.key_press(Key::ArrowLeft); // collapses the opening selection to the caret at 0
+    h.run_steps(2);
+    field(&h, "Untitled").type_text("I"); // inserts at the caret, does not replace
+    h.key_press(Key::Enter);
+    h.run_steps(3);
+    assert_eq!(outline(&h)[0].0, "IUntitled");
+}
+
 #[test]
 fn escape_cancels_a_rename() {
     let mut h = harness();
diff --git a/parity/acrobat-features.toml b/parity/acrobat-features.toml
index 0b6f658dd6..d0377fc883 100644
--- a/parity/acrobat-features.toml
+++ b/parity/acrobat-features.toml
@@ -3291,8 +3291,8 @@ milestone = "M4"
 status = "shipped"
 commands = []
 tools = ["bookmark_rename"]
-evidence = ["crates/ui-egui/tests/it/bookmarks.rs::new_rename_reorder_indent_delete_and_undo", "crates/ui-egui/tests/it/bookmarks.rs::escape_cancels_a_rename", "crates/organize/src/tests.rs::bookmarks_add_rename_move_delete", "crates/organize/src/tests.rs::bookmark_edits_keep_unknown_keys_and_touch_few_objects"]
-notes = ""
+evidence = ["crates/ui-egui/tests/it/bookmarks.rs::new_rename_reorder_indent_delete_and_undo", "crates/ui-egui/tests/it/bookmarks.rs::escape_cancels_a_rename", "crates/ui-egui/tests/it/bookmarks.rs::typing_replaces_the_title_when_the_editor_opens", "crates/ui-egui/tests/it/bookmarks.rs::a_rename_editor_keeps_the_users_caret_across_frames", "crates/organize/src/tests.rs::bookmarks_add_rename_move_delete", "crates/organize/src/tests.rs::bookmark_edits_keep_unknown_keys_and_touch_few_objects"]
+notes = "The inline editor opens with the whole title selected, so typing replaces it at once (#5529); a caret the user moves afterwards is kept by later frames."
 
 [[feature]]
 id = "organize.bookmark-delete"