Active sessions problem

[ioan]

Do you have some code in OnBrowserCheck event? It is interesting to note that user agent string of browsers are empty which suggests me that you might be creating a TFirefox instance as a fall back maybe?
Yes, not all are Firefox. On the sample I have, most are, though.

Yes, I have code in OnBrowserCheck and you are right, if the browser is TOther creates TFirefox instance:

Code:

if (rBrowser is TOther) then
  begin
    rBrowser.Free;
    // accept the unknown browser as Firefox (probably the best idea)
    rBrowser := TFireFox.Create(TFireFox.MIN_VERSION);
  end

I can comment it out if you think it will help find how those ghost sessions are created.