--- a/toolkit/components/places/Bookmarks.jsm
+++ b/toolkit/components/places/Bookmarks.jsm
@@ -1081,16 +1081,18 @@ var Bookmarks = Object.freeze({
 
   /**
    * Searches a list of bookmark-items by a search term, url or title.
    *
    * IMPORTANT:
    * This is intended as an interim API for the web-extensions implementation.
    * It will be removed as soon as we have a new querying API.
    *
+   * Note also that this used to exclude separators but no longer does so.
+   *
    * If you just want to search bookmarks by URL, use .fetch() instead.
    *
    * @param query
    *        Either a string to use as search term, or an object
    *        containing any of these keys: query, title or url with the
    *        corresponding string to match as value.
    *        The url property can be either a string or an nsIURI.
    *
@@ -1543,21 +1545,19 @@ async function handleBookmarkItemSpecial
   }
 }
 
 // Query implementation.
 
 async function queryBookmarks(info) {
   let queryParams = {
     tags_folder: await promiseTagsFolderId(),
-    type: Bookmarks.TYPE_SEPARATOR,
   };
-  // We're searching for bookmarks, so exclude tags and separators.
-  let queryString = "WHERE b.type <> :type";
-  queryString += " AND b.parent <> :tags_folder";
+  // We're searching for bookmarks, so exclude tags.
+  let queryString = "WHERE b.parent <> :tags_folder";
   queryString += " AND p.parent <> :tags_folder";
 
   if (info.title) {
     queryString += " AND b.title = :title";
     queryParams.title = info.title;
   }
 
   if (info.url) {

--- a/toolkit/components/places/tests/bookmarks/test_bookmarks_search.js
+++ b/toolkit/components/places/tests/bookmarks/test_bookmarks_search.js
@@ -216,31 +216,31 @@ add_task(async function search_folder() 
   Assert.equal(results.length, 1);
   checkBookmarkObject(results[0]);
   Assert.deepEqual(bm, results[0]);
   Assert.equal(folder.guid, results[0].parentGuid);
 
   await PlacesUtils.bookmarks.eraseEverything();
 });
 
-add_task(async function search_excludes_separators() {
+add_task(async function search_includes_separators() {
   let bm1 = await PlacesUtils.bookmarks.insert({ parentGuid: PlacesUtils.bookmarks.unfiledGuid,
                                                  url: "http://example.com/",
                                                  title: "a bookmark" });
   let bm2 = await PlacesUtils.bookmarks.insert({ parentGuid: PlacesUtils.bookmarks.unfiledGuid,
                                                  type: PlacesUtils.bookmarks.TYPE_SEPARATOR });
 
   checkBookmarkObject(bm1);
   checkBookmarkObject(bm2);
 
   let results = await PlacesUtils.bookmarks.search({});
   Assert.ok(results.findIndex(bookmark => { return bookmark.guid == bm1.guid }) > -1,
             "The bookmark was found in the results.");
-  Assert.equal(-1, results.findIndex(bookmark => { return bookmark.guid == bm2.guid }),
-            "The separator was excluded from the results.");
+  Assert.ok(results.findIndex(bookmark => { return bookmark.guid == bm2.guid }) > -1,
+            "The separator was included in the results.");
 
   await PlacesUtils.bookmarks.eraseEverything();
 });
 
 add_task(async function search_excludes_tags() {
   let bm1 = await PlacesUtils.bookmarks.insert({ parentGuid: PlacesUtils.bookmarks.unfiledGuid,
                                                  url: "http://example.com/",
                                                  title: "a bookmark" });