diff --git a/modules/browser_object_navigation.py b/modules/browser_object_navigation.py
index 655e54090..66b58fe09 100644
--- a/modules/browser_object_navigation.py
+++ b/modules/browser_object_navigation.py
@@ -33,6 +33,7 @@ class Navigation(BasePage):
         "Bing",
         "DuckDuckGo",
         "Wikipedia (en)",
+        "Firefox Add-ons"
     }
 
     def __init__(self, driver: Firefox, **kwargs):
diff --git a/tests/address_bar_and_search/test_added_open_search_engine_default.py b/tests/address_bar_and_search/test_added_open_search_engine_default.py
new file mode 100644
index 000000000..32e8c0437
--- /dev/null
+++ b/tests/address_bar_and_search/test_added_open_search_engine_default.py
@@ -0,0 +1,53 @@
+import pytest
+from selenium.webdriver import Firefox, Keys
+
+from modules.browser_object_navigation import Navigation
+from modules.browser_object_tabbar import TabBar
+from modules.page_object_prefs import AboutPrefs
+
+TEST_URL = "https://addons.mozilla.org/en-US/firefox"
+SEARCH_ENGINE = "Firefox Add-ons"
+TEXT = "test"
+TEST_TEXT = "Firefox"
+EXPECTED_URL = "https://addons.mozilla.org/en-US/firefox/search/?q=Firefox"
+
+
+@pytest.fixture()
+def test_case():
+    return "3028769"
+
+
+@pytest.mark.parametrize("engine", ["Firefox Add-ons"])
+def test_added_open_search_engine_default(driver: Firefox, engine):
+    """
+    C3028769 - Added Open Search Engine can be made default search engine
+    """
+
+    # Instantiate objects
+    nav = Navigation(driver)
+    prefs = AboutPrefs(driver, category="search")
+    tabs = TabBar(driver)
+
+    # Open website that has autodiscovery
+    driver.get(TEST_URL)
+
+    # Click in the address bar and delete/add a letter in the URL to enter the edit mode
+    nav.type_in_awesome_bar(TEXT)
+
+    # Open the Unified Search button and click on the option to add the search engine : "Add + name_of_search_engine"
+    nav.click_search_mode_switcher()
+    nav.set_search_mode(engine)
+
+    # Open in a new tab about:preferences#search
+    prefs.open()
+
+    # Set the newly added engine as a default engine.
+    prefs.search_engine_dropdown().select_option(SEARCH_ENGINE)
+
+    # Open a new tab and in the address bar type a search string and press enter
+    tabs.new_tab_by_button()
+    tabs.switch_to_new_tab()
+    nav.type_in_awesome_bar(TEST_TEXT + Keys.ENTER)
+
+    # Check that search is performed with the newly added default engine and search results are displayed
+    assert nav.url_contains(EXPECTED_URL)