This is how you do remember_me with Devise and Omniauthable, this is the OmniauthCallbacksController in one of my apps:
class OmniauthCallbacksController < Devise::OmniauthCallbacksController def facebook auth(:facebook) end def twitter auth(:twitter) end protected def auth(provider) auth_hash = request.env['omniauth.auth'] @user = User.find_for_omniauth(provider, auth_hash, current_user) if @user.persisted? flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => provider @user.remember_me = true sign_in_and_redirect @user, :event => :authentication else session['devise.omniauth'] = auth_hash.except('extra') redirect_to new_user_registration_url end end end