new file mode 100644
--- /dev/null
+++ b/browser/components/migration/tests/unit/AppData/Roaming/360se6/apps/data/users/0f3ab103a522f4463ecacc36d34eb996/360sefav.db
@@ -0,0 +1,1 @@
+Placeholder file to satisfy the resource existence check, not a real SQLite db.

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new file mode 100644
--- /dev/null
+++ b/browser/components/migration/tests/unit/AppData/Roaming/360se6/apps/data/users/login.ini
@@ -0,0 +1,17 @@
+# This file contains Chinese characters encoded in GBK
+[NowLogin]
+NickName=ıÖÇ»ðºü
+email=test@firefox.com.cn
+UserMd5=0f3ab103a522f4463ecacc36d34eb996
+IsLogined=1
+# Will be excluded from sourceProfiles due to missing files
+[20070606]
+NickName=ıÖÇÍøÂç
+email=test@mozillaonline.com
+UserMd5=46a579b8b64358fd45616247df4ea604
+# Will be excluded from sourceProfiles as duplication of NowLogin
+[20110303]
+NickName=ıÖÇ»ðºü
+email=test@firefox.com.cn
+UserMd5=0f3ab103a522f4463ecacc36d34eb996
+# There's also a default profile (not included here) for anonymous users

new file mode 100644
--- /dev/null
+++ b/browser/components/migration/tests/unit/test_360se_bookmarks.js
@@ -0,0 +1,58 @@
+"use strict";
+
+add_task(async function() {
+  registerFakePath("AppData", do_get_file("AppData/Roaming/"));
+
+  let migrator = MigrationUtils.getMigrator("360se");
+  // Sanity check for the source.
+  Assert.ok(migrator.sourceExists);
+
+  let profiles = migrator.sourceProfiles;
+  Assert.equal(profiles.length, 2, "Should present two profiles");
+  Assert.equal(profiles[0].name, "test@firefox.com.cn", "Current logged in user should be the first");
+  Assert.equal(profiles[profiles.length - 1].name, "Default", "Default user should be the last");
+
+  // Wait for the imported bookmarks.  Check that "From 360 Secure Browser"
+  // folders are created on the toolbar.
+  let source = MigrationUtils.getLocalizedString("sourceName360se");
+  let label = MigrationUtils.getLocalizedString("importedBookmarksFolder", [source]);
+
+  let expectedParents = [ PlacesUtils.toolbarFolderId ];
+  let itemCount = 0;
+
+  let gotFolder = false;
+  let bmObserver = {
+    onItemAdded(aItemId, aParentId, aIndex, aItemType, aURI, aTitle) {
+      if (aTitle != label) {
+        itemCount++;
+      }
+      if (aItemType == PlacesUtils.bookmarks.TYPE_FOLDER && aTitle == "360 \u76f8\u5173") {
+        gotFolder = true;
+      }
+      if (expectedParents.length > 0 && aTitle == label) {
+        let index = expectedParents.indexOf(aParentId);
+        Assert.ok(index != -1, "Found expected parent");
+        expectedParents.splice(index, 1);
+      }
+    },
+    onBeginUpdateBatch() {},
+    onEndUpdateBatch() {},
+    onItemRemoved() {},
+    onItemChanged() {},
+    onItemVisited() {},
+    onItemMoved() {},
+  };
+  PlacesUtils.bookmarks.addObserver(bmObserver);
+
+  await promiseMigration(migrator, MigrationUtils.resourceTypes.BOOKMARKS, {
+    id: "default"
+  });
+  PlacesUtils.bookmarks.removeObserver(bmObserver);
+
+  // Check the bookmarks have been imported to all the expected parents.
+  Assert.ok(!expectedParents.length, "No more expected parents");
+  Assert.ok(gotFolder, "Should have seen the folder get imported");
+  Assert.equal(itemCount, 10, "Should import all 10 items.");
+  // Check that the telemetry matches:
+  Assert.equal(MigrationUtils._importQuantities.bookmarks, itemCount, "Telemetry reporting correct.");
+});

--- a/browser/components/migration/tests/unit/xpcshell.ini
+++ b/browser/components/migration/tests/unit/xpcshell.ini
@@ -1,24 +1,26 @@
 [DEFAULT]
 head = head_migration.js
 firefox-appdir = browser
 skip-if = toolkit == 'android'
 support-files =
   Library/**
   AppData/**
 
+[test_360se_bookmarks.js]
+skip-if = os != "win"
 [test_automigration.js]
 [test_Chrome_bookmarks.js]
 [test_Chrome_cookies.js]
 skip-if = os != "mac" # Relies on ULibDir
 [test_Chrome_passwords.js]
 skip-if = os != "win"
 [test_Edge_db_migration.js]
-skip-if = os != "win" || os_version == "5.1" || os_version == "5.2" # Relies on post-XP bits of ESEDB
+skip-if = os != "win"
 [test_fx_telemetry.js]
 [test_IE_bookmarks.js]
 skip-if = os != "win"
 [test_IE_cookies.js]
 skip-if = os != "win"
 [test_IE7_passwords.js]
 skip-if = os != "win"
 [test_Safari_bookmarks.js]