private void button1_Click(object sender, EventArgs e)
        {
            webBrowser1.Navigate("https://m.facebook.com/messages/read/?fbid=" + listBox1.Text);
            C++;
            listBox1.SelectedItem = listBox1.Items[C - 1];
            timer1.Start();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            var links = webBrowser1.Document.GetElementsByTagName("textarea");
            foreach (HtmlElement link in links)
            {
                if (richTextBox1.Text == richTextBox1.Text)
                {
                    link.InnerText = richTextBox1.Text;
                }
                timer2.Start();
            }
        }

        private void timer2_Tick(object sender, EventArgs e)
        {
            var linkss = webBrowser1.Document.GetElementsByTagName("input");
            foreach (HtmlElement link in linkss)
            {
                if (link.Name == "Send" || link.Name == "send")
                {
                    if (richTextBox1.Text != "")
                    {
                        link.InvokeMember("click");
                    }
                }
                timer3.Start();
            }
        }

        private void timer3_Tick(object sender, EventArgs e)
        {
            webBrowser1.Navigate("https://m.facebook.com/messages/read/?fbid=" + listBox1.Text);
            timer1.Start();
            C++;
            listBox1.SelectedItem = listBox1.Items[C - 1];
        }

        private void button2_Click(object sender, EventArgs e)
        {
            listBox1.Items.Clear();
            OpenFileDialog theDialog = new OpenFileDialog();
            theDialog.Title = "Open Text File";
            theDialog.Filter = "TXT files|*.txt";
            if (theDialog.ShowDialog() == DialogResult.OK)
            {
                string Name = theDialog.FileName.ToString();
                if (File.Exists(Name))
                {
                    var lines = File.ReadAllLines(Name);
                    foreach (var line in lines)
                    {
                        listBox1.Items.Add(line);
                        listBox1.SelectedItem = listBox1.Items[listBox1.Items.Count - 1];
                        var ID = line.Split(new string[] { " : " }, StringSplitOptions.RemoveEmptyEntries);
                    }
                }
            }
        }