Bug 1868172 - Add support for `UnsupportedAddonType` error code

app/src/main/java/org/mozilla/fenix/extension/WebExtensionPromptFeature.kt

@@ -161,7 +161,9 @@ class WebExtensionPromptFeature(
                 return
             }
 
-            is WebExtensionInstallException.Unknown -> {
+            is WebExtensionInstallException.UnsupportedAddonType,
+            is WebExtensionInstallException.Unknown,
+            -> {
                 // Making sure we don't have a
                 // Title = Failed to install
                 // Message = Failed to install $addonName

app/src/main/java/org/mozilla/fenix/settings/SettingsFragment.kt

@@ -109,10 +109,7 @@ class SettingsFragment : PreferenceFragmentCompat() {
             updateFxAAllowDomesticChinaServerMenu = ::updateFxAAllowDomesticChinaServerMenu,
         )
 
-        addonFilePicker = AddonFilePicker(
-            requireContext(),
-            requireComponents.addonManager,
-        )
+        addonFilePicker = AddonFilePicker(requireContext(), requireComponents.addonManager)
         addonFilePicker.registerForResults(this)
 
         // It's important to update the account UI state in onCreate since that ensures we'll never

app/src/test/java/org/mozilla/fenix/extension/WebExtensionPromptFeatureTest.kt

@@ -307,4 +307,22 @@ class WebExtensionPromptFeatureTest {
         }
         verify(exactly = 1) { onConfirm(true) }
     }
+
+    @Test
+    fun `WHEN calling handleInstallationFailedRequest with UnsupportedAddonType error THEN showDialog with the correct message`() {
+        val expectedTitle = ""
+        val extensionName = "extensionName"
+        val exception = WebExtensionInstallException.UnsupportedAddonType(
+            extensionName = extensionName,
+            throwable = Exception(),
+        )
+        val expectedMessage =
+            testContext.getString(R.string.mozac_feature_addons_failed_to_install, extensionName)
+
+        webExtensionPromptFeature.handleInstallationFailedRequest(
+            exception = exception,
+        )
+
+        verify { webExtensionPromptFeature.showDialog(expectedTitle, expectedMessage) }
+    }
 }