add feature to delete addons cache file

change default search engine to DuckDuckGo

app/src/debug/res/menu/addons_menu.xml

@@ -3,6 +3,12 @@
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/addons_delete_cache"
+        android:icon="@drawable/ic_delete"
+        android:title="@string/addons_delete_cache"
+        android:contentDescription="@string/addons_delete_cache"
+        app:showAsAction="ifRoom|collapseActionView" />
     <item
         android:id="@+id/search"
         android:icon="@drawable/ic_search"

app/src/forkDebug/res/menu/addons_menu.xml

@@ -3,6 +3,12 @@
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/addons_delete_cache"
+        android:icon="@drawable/ic_delete"
+        android:title="@string/addons_delete_cache"
+        android:contentDescription="@string/addons_delete_cache"
+        app:showAsAction="ifRoom|collapseActionView" />
     <item
         android:id="@+id/search"
         android:icon="@drawable/ic_search"

app/src/forkRelease/res/menu/addons_menu.xml

@@ -3,6 +3,12 @@
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/addons_delete_cache"
+        android:icon="@drawable/ic_delete"
+        android:title="@string/addons_delete_cache"
+        android:contentDescription="@string/addons_delete_cache"
+        app:showAsAction="ifRoom|collapseActionView" />
     <item
         android:id="@+id/search"
         android:icon="@drawable/ic_search"

app/src/main/java/org/mozilla/fenix/addons/AddonsManagementFragment.kt

@@ -16,6 +16,7 @@ import android.view.View
 import android.view.inputmethod.EditorInfo
 import android.view.accessibility.AccessibilityEvent
 import androidx.annotation.VisibleForTesting
+import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.widget.SearchView
 import androidx.core.view.MenuHost
 import androidx.core.view.MenuProvider
@@ -142,13 +143,37 @@ class AddonsManagementFragment : Fragment(R.layout.fragment_add_ons_management)
 
                 override fun onMenuItemSelected(menuItem: MenuItem): Boolean {
                     // Handle the menu selection
-                    return true
+                    return when (menuItem.itemId) {
+                        R.id.addons_delete_cache -> {
+                            showAlertDialog()
+                            true
+                        }
+                        R.id.search -> {
+                            true
+                        }
+                        else -> {true}
+                    }
                 }
             },
             viewLifecycleOwner, Lifecycle.State.RESUMED,
         )
     }
 
+    private fun showAlertDialog() {
+        val builder: AlertDialog.Builder = AlertDialog.Builder(requireContext())
+        builder
+            .setMessage(R.string.confirm_addons_delete_cache)
+            .setPositiveButton(R.string.confirm_addons_delete_cache_yes) { _, _ ->
+                requireComponents.clearAddonCache()
+            }
+            .setNegativeButton(R.string.confirm_addons_delete_cache_no) { _, _ ->
+                // User cancelled the dialog.
+            }
+
+        val dialog: AlertDialog = builder.create()
+        dialog.show()
+    }
+
     private fun searchAddons(addonSearchText: String): Boolean {
         if (adapter == null) {
             return false

app/src/main/res/values-zh-rCN/strings.xml

@@ -2433,4 +2433,14 @@
     <string name="preferences_relinquish_memory_title">挂起标签页以避免因内存不足而进程被杀死</string>
     <!-- Description for relinquish memory preference in customization settings -->
     <string name="preferences_relinquish_memory_description">开启后，当系统内存不足时，标签页会被挂起，同时页面状态会丢失</string>
+    <string name="preferences_dns_over_https">基于 HTTPS 的 DNS</string>
+    <string name="preferences_dns_over_https_on">启用</string>
+    <string name="preferences_dns_over_https_off">关闭</string>
+    <string name="preferences_dns_over_https_title">基于 HTTPS 的 DNS</string>
+    <string name="preferences_dns_over_https_summary">基于 DNS 的 HTTPS 会加密发送您对域名的请求，从而建立安全 DNS，使他人更难得知您要访问的网站</string>
+    <string name="preferences_dns_over_https_custom_server">自定义</string>
+    <string name="addons_delete_cache">删除附加组件元数据缓存文件</string>
+    <string name="confirm_addons_delete_cache">您确定要删除附加组件元数据缓存文件吗？</string>
+    <string name="confirm_addons_delete_cache_yes">确定</string>
+    <string name="confirm_addons_delete_cache_no">取消</string>
 </resources>

app/src/main/res/values-zh-rTW/strings.xml

@@ -2407,4 +2407,14 @@
     <string name="preferences_relinquish_memory_title">掛起標籤頁以避免因記憶體不足而程序被殺死</string>
     <!-- Description for relinquish memory preference in customization settings -->
     <string name="preferences_relinquish_memory_description">開啟後，當系統記憶體不足時，標籤頁會被掛起，同時頁面狀態會丟失</string>
+    <string name="preferences_dns_over_https">DNS over HTTPS</string>
+    <string name="preferences_dns_over_https_on">開啟</string>
+    <string name="preferences_dns_over_https_off">關閉</string>
+    <string name="preferences_dns_over_https_title">DNS over HTTPS</string>
+    <string name="preferences_dns_over_https_summary">DNS over HTTPS 會將您的網域名稱查詢請求加密後傳送，使其他人更難得知您要開啟的網站，讓 DNS 查詢變得安全。</string>
+    <string name="preferences_dns_over_https_custom_server">自定義</string>
+    <string name="addons_delete_cache">刪除附加元件元數據緩存檔案</string>
+    <string name="confirm_addons_delete_cache">您確定要刪除附加元件元數據緩存檔案嗎？</string>
+    <string name="confirm_addons_delete_cache_yes">確定</string>
+    <string name="confirm_addons_delete_cache_no">取消</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -2111,4 +2111,14 @@
     <string name="preferences_relinquish_memory_title">Suspend tabs to avoid being killed for memory</string>
     <!-- Description for relinquish memory preference in customization settings -->
     <string name="preferences_relinquish_memory_description">If enabled, tabs will be suspended and page state lost when the system is low on memory</string>
+    <string name="preferences_dns_over_https">DNS over HTTPS</string>
+    <string name="preferences_dns_over_https_on">On</string>
+    <string name="preferences_dns_over_https_off">Off</string>
+    <string name="preferences_dns_over_https_title">DNS over HTTPS mode</string>
+    <string name="preferences_dns_over_https_summary">Domain Name System (DNS) over HTTPS sends your request for a domain name through an encrypted connection, creating a secure DNS and making it harder for others to see which website you’re about to access.</string>
+    <string name="preferences_dns_over_https_custom_server">Custom</string>
+    <string name="addons_delete_cache">Delete addons metadata cache file</string>
+    <string name="confirm_addons_delete_cache">Are you sure to delete addons metadata cache file?</string>
+    <string name="confirm_addons_delete_cache_yes">OK</string>
+    <string name="confirm_addons_delete_cache_no">Cancel</string>
 </resources>

automation/iceraven/assets/list.json

@@ -1,6 +1,6 @@
 {
   "default": {
-    "searchDefault": "Google",
+    "searchDefault": "DuckDuckGo",
     "searchOrder": ["Google", "Bing"],
     "visibleDefaultEngines": [
       "google-b-m", "bing", "amazondotcom", "ddg", "wikipedia", "startpage"