Component TTMSFNCWebBrowser

Lazarus,
OS: Linux
TMS FNC UI Pack v4.1.0.0

I tried using the TTMSFNCWebBrowser component and it didn't work

TMSFNCWebBrowser1.Navigate('https://www.tmssoftware.com');
or
TMSFNCWebBrowser1.URL := 'https://www.tmssoftware.com';
or
TMSFNCWebBrowser1.LoadHTML('< b > This is HTML! < /b >');

The browser only works when enabling GTK3 in your application, The default is GTK2.