--- a/mobile/android/base/java/org/mozilla/gecko/LauncherActivity.java
+++ b/mobile/android/base/java/org/mozilla/gecko/LauncherActivity.java
@@ -31,22 +31,23 @@ import static org.mozilla.gecko.deeplink
 import static org.mozilla.gecko.deeplink.DeepLinkContract.LINK_PREFERENCES;
 import static org.mozilla.gecko.deeplink.DeepLinkContract.LINK_PREFERENCES_ACCESSIBILITY;
 import static org.mozilla.gecko.deeplink.DeepLinkContract.LINK_PREFERENCES_NOTIFICATIONS;
 import static org.mozilla.gecko.deeplink.DeepLinkContract.LINK_PREFERENCES_PRIAVACY;
 import static org.mozilla.gecko.deeplink.DeepLinkContract.LINK_PREFERENCES_SEARCH;
 import static org.mozilla.gecko.deeplink.DeepLinkContract.LINK_SAVE_AS_PDF;
 import static org.mozilla.gecko.deeplink.DeepLinkContract.LINK_SIGN_UP;
 import static org.mozilla.gecko.deeplink.DeepLinkContract.SUMO_DEFAULT_BROWSER;
+import static org.mozilla.gecko.deeplink.DeepLinkContract.LINK_FXA_SIGNIN;
+import org.mozilla.gecko.deeplink.DeepLinkContract;
 
 /**
  * Activity that receives incoming Intents and dispatches them to the appropriate activities (e.g. browser, custom tabs, web app).
  */
 public class LauncherActivity extends Activity {
-
     private static final String TAG = LauncherActivity.class.getSimpleName();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         GeckoAppShell.ensureCrashHandling();
 
@@ -215,15 +216,56 @@ public class LauncherActivity extends Ac
             case LINK_PREFERENCES_PRIAVACY:
             case LINK_PREFERENCES_SEARCH:
             case LINK_PREFERENCES_NOTIFICATIONS:
             case LINK_PREFERENCES_ACCESSIBILITY:
                 settingsIntent = new Intent(this, GeckoPreferences.class);
                 GeckoPreferences.setResourceToOpen(settingsIntent, host);
                 startActivityForResult(settingsIntent, ACTIVITY_REQUEST_PREFERENCES);
                 break;
+            case LINK_FXA_SIGNIN:
+                dispatchAccountsDeepLink(intent);
+                break;
             default:
-                Log.w(TAG, "unrecognized deep links");
+                Log.w(TAG, "Unrecognized deep link");
+        }
+    }
+
+    private void dispatchAccountsDeepLink(final SafeIntent safeIntent) {
+        final Intent intent = new Intent(Intent.ACTION_VIEW);
+
+        final Uri intentUri = safeIntent.getData();
+
+        final String accountsToken = intentUri.getQueryParameter(DeepLinkContract.ACCOUNTS_TOKEN_PARAM);
+        final String entryPoint = intentUri.getQueryParameter(DeepLinkContract.ACCOUNTS_ENTRYPOINT_PARAM);
+
+        String dispatchUri = AboutPages.ACCOUNTS + "?";
+
+        // If token is missing from the deep-link, we'll still open the accounts page.
+        if (accountsToken != null) {
+            dispatchUri = dispatchUri.concat(DeepLinkContract.ACCOUNTS_TOKEN_PARAM + "=" + accountsToken + "&");
         }
 
+        // Pass through the entrypoint.
+        if (entryPoint != null) {
+            dispatchUri = dispatchUri.concat(DeepLinkContract.ACCOUNTS_ENTRYPOINT_PARAM + "=" + entryPoint + "&");
+        }
+
+        // Pass through any utm_* parameters.
+        for (String queryParam : intentUri.getQueryParameterNames()) {
+            if (queryParam.startsWith("utm_")) {
+                dispatchUri = dispatchUri.concat(queryParam + "=" + intentUri.getQueryParameter(queryParam) + "&");
+            }
+        }
+
+        try {
+            intent.setData(Uri.parse(dispatchUri));
+        } catch (Exception e) {
+            Log.w(TAG, "Could not parse accounts deep link.");
+        }
+
+        intent.setClassName(getApplicationContext(), AppConstants.MOZ_ANDROID_BROWSER_INTENT_CLASS);
+
+        filterFlags(intent);
+        startActivity(intent);
     }
 
 }

--- a/mobile/android/base/java/org/mozilla/gecko/deeplink/DeepLinkContract.java
+++ b/mobile/android/base/java/org/mozilla/gecko/deeplink/DeepLinkContract.java
@@ -7,20 +7,25 @@ package org.mozilla.gecko.deeplink;
 
 // This class defines the contract when using deep links
 public class DeepLinkContract {
 
     // Sumo page for setting Fennec as default browser
     public static final String SUMO_DEFAULT_BROWSER = "https://support.mozilla.org/kb/make-firefox-default-browser-android?utm_source=inproduct&utm_medium=settings&utm_campaign=mobileandroid";
     public static final String DEEP_LINK_SCHEME = "firefox";
 
+    public static final String LINK_FXA_SIGNIN = "fxa-signin";
+
     public static final String LINK_DEFAULT_BROWSER = "default_browser";
     public static final String LINK_SAVE_AS_PDF = "save_as_pdf";
     public static final String LINK_BOOKMARK_LIST = "bookmark_list";
     public static final String LINK_HISTORY_LIST = "history_list";
     public static final String LINK_SIGN_UP = "sign_up";
     public static final String LINK_PREFERENCES = "preferences";
     public static final String LINK_PREFERENCES_PRIAVACY = "preferences_privacy";
     public static final String LINK_PREFERENCES_SEARCH = "preferences_search";
     public static final String LINK_PREFERENCES_NOTIFICATIONS = "preferences_notifications";
     public static final String LINK_PREFERENCES_ACCESSIBILITY = "preferences_accessibility";
 
+    public static final String ACCOUNTS_TOKEN_PARAM = "signin";
+    public static final String ACCOUNTS_ENTRYPOINT_PARAM = "entrypoint";
+    public static final String ACCOUNTS_UTM_PREFIX = "utm_";
 }