not working in firefox

the plugin has stopped working in firefox. in the mobile version of firefox and on chromium everything works fine.

Uncaught TypeError: event is undefined
    doGoogleLanguageTranslator https://***/wp-content/plugins/google-language-translator/js/scripts.js?ver=6.0.16:50
    n https://***/wp-content/plugins/google-language-translator/js/scripts.js?ver=6.0.16:375
    <anonymous> https://***/wp-content/plugins/google-language-translator/js/scripts.js?ver=6.0.16:370
    jQuery 2
        dispatch
        handle