get Text from any Browser (IE,Chrome, FireFox, etc)

private void button1_Click(object sender, EventArgs e)
 {
    Process[] plist = Process.GetProcesses();
    foreach (Process p in plist)
     {
      if (p.ProcessName == "notepad")
       {
         AutomationElement ae = AutomationElement.FromHandle(p.MainWindowHandle);

         AutomationElement npEdit = ae.FindFirst(TreeScope.Descendants, new PropertyCondition(AutomationElement.ClassNameProperty, "Edit"));

         TextPattern tp = npEdit.GetCurrentPattern(TextPattern.Pattern) as TextPattern;
         TextPatternRange[] trs;

         if (tp.SupportedTextSelection == SupportedTextSelection.None)
          {
             return;
          }
          else
          {
            trs = tp.GetSelection();
            label1.Text = trs[0].GetText(-1);
          }
       }
     }
  }

AutomationElement ae = AutomationElement.FromHandle(p.MainWindowHandle);