diff --git a/crates/ui-egui/src/dialogs/safe_mode.rs b/crates/ui-egui/src/dialogs/safe_mode.rs
index 99ea560bb..b26711c74 100644
--- a/crates/ui-egui/src/dialogs/safe_mode.rs
+++ b/crates/ui-egui/src/dialogs/safe_mode.rs
@@ -112,11 +112,16 @@ fn confirm_stopped(app: &mut VectorcraftApp, d: &Dialog) -> Result<Value, String
     Ok(Value::Null)
 }
 
-/// Help › Safe Mode: the disabled plug-ins, none ticked for Enable on Re-launch.
+/// Help › Safe Mode: the disabled plug-ins, none ticked for Enable on Re-launch. A plug-in disabled
+/// by its id and found under several files has an entry for each file; it is listed once, and
+/// Enable on Re-launch turns on every entry with its id.
 pub fn open(app: &mut VectorcraftApp) -> Result<Value, String> {
-    let items: Vec<Value> = safe_mode::disabled()
+    let disabled = safe_mode::disabled();
+    let items: Vec<Value> = disabled
         .iter()
-        .map(|i| {
+        .enumerate()
+        .filter(|(k, i)| i.id.is_none() || !disabled[..*k].iter().any(|e| e.id == i.id))
+        .map(|(_, i)| {
             let mut v = i.to_json();
             v["enable"] = json!(false);
             v
diff --git a/crates/ui-egui/tests/safe_mode.rs b/crates/ui-egui/tests/safe_mode.rs
index e47ef9bbe..246352e46 100644
--- a/crates/ui-egui/tests/safe_mode.rs
+++ b/crates/ui-egui/tests/safe_mode.rs
@@ -325,3 +325,33 @@ fn help_safe_mode_enables_a_plug_in_for_the_next_launch_only() {
     done(&launch_dir);
     let _ = std::fs::remove_dir_all(&dir);
 }
+
+#[test]
+fn help_safe_mode_lists_a_plug_in_found_under_several_files_once() {
+    let _f = fresh();
+    let dir = store_with_two("help-files");
+    let launch_dir = dir.join("Launch");
+    let mut app = launch(&dir, &launch_dir, false);
+    let x = |file: &str| Item { id: Some("test.ui.x".into()), file: Some(file.into()), name: Some("X".into()) };
+    let y = Item { id: Some("test.ui.y".into()), file: None, name: Some("Y".into()) };
+    let z = Item { id: None, file: Some("z.wasm".into()), name: None };
+    // x is turned off by its id, then found under two files, as loading a folder finds it.
+    let x_by_id = Item { file: None, ..x("") };
+    for item in [&x_by_id, &y, &z] {
+        assert!(safe_mode::set_enabled(item, false));
+    }
+    assert!(safe_mode::disable_file_of(&x("a.wasm")));
+    assert!(safe_mode::disable_file_of(&x("b.wasm")));
+    assert!(app.session.store_disabled_plugins());
+    assert_eq!(safe_mode::disabled().len(), 4, "an entry for each of x's files");
+    app.run("help.safeMode", json!({})).unwrap();
+    let items = app.ui.dialog.as_ref().unwrap().fields["items"].as_array().unwrap().clone();
+    let labels: Vec<&str> = items.iter().map(|v| v["label"].as_str().unwrap()).collect();
+    assert_eq!(labels, ["X", "Y", "z.wasm"], "one row for each plug-in");
+    frame(&mut app);
+    app.ui.dialog.as_mut().unwrap().fields["items"][0]["enable"] = json!(true);
+    dialogs::confirm(&mut app).unwrap();
+    assert_eq!(safe_mode::disabled(), [y, z], "every entry with x's id is turned on");
+    done(&launch_dir);
+    let _ = std::fs::remove_dir_all(&dir);
+}