--- a/mobile/android/base/java/org/mozilla/gecko/LauncherActivity.java
+++ b/mobile/android/base/java/org/mozilla/gecko/LauncherActivity.java
@@ -232,17 +232,17 @@ public class LauncherActivity extends Ac
     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 + "?";
+        String dispatchUri = AboutPages.ACCOUNTS + "?action=signin&";
 
         // 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) {