How to delete saved passwords from the browser, programmatically

Question

Does anyone know how to delete passwords in Firefox, Chrome and IE with C#? I have tried doing this in a lot of ways but I have not been successful in that I cannot find the place they are stored to delete them. I looked in http://kyrionhackingtutorials.com/2012/03/all-saved-password-location but i cant seem to find and delete them.

public static void deleteHistory(string browser)

    {
        switch (browser)
        {
            case "explorer":
                RegistryKey r = Registry.CurrentUser;
                try
                {
                    r.DeleteSubKey(@"Software\Microsoft\Internet Explorer\IntelliForms\Storage2");
                }
                catch(Exception e)
                {
                    Console.WriteLine("no passwords deleted : " + e);
                }
                   string Efilepath = System.Environment.GetEnvironmentVariable("USERPROFILE") + explorerPath;
                string[] Edirctorys = Directory.GetFiles(Efilepath);
                foreach (string dir in Edirctorys)
                {
                    File.Delete(dir);
                }
                break;
            case "chrome":
                string[] filePaths;
                if (File.Exists(chromePathXP))
                {
                     filePaths = Directory.GetFiles(chromePathXP);
                    foreach (string file in filePaths)
                        File.Delete(file);
                }
                if (File.Exists(chromePathVista))
                {
                    filePaths = Directory.GetFiles(chromePathVista);
                    foreach (string file in filePaths)
                        File.Delete(file);
                }
                break;
            case "firefox":


                string displayName = WindowsIdentity.GetCurrent().Name.Split('\\')[1];
                string filepath = System.Environment.GetEnvironmentVariable("USERPROFILE") + firefoxPath+displayName;

                //string[] dirctorys = Directory.GetDirectories(filepath);
            //    foreach (string dir in dirctorys)

                    foreach (string file in firefoxFiles)
                    {
                        if (File.Exists(filepath + "\\" + file))
                        {
                            Console.WriteLine(filepath + file);
                            File.Delete(filepath + "\\" + file);
                        }
                    }

                break;
            default:
                break;
        }

    }

Answer 1

I'm not sure if the information on the website you linked is correct. I believe the passwords etc for Firefox moved into the profile folder some time ago....

For Firefox the profile folder is located in

%APPDATA%\Mozilla\Firefox\Profiles\xxxxxxxx.default.

%APPDATA% is shorthand for the C:\Users\\AppData\Roaming\Mozilla (Win 7/Vista) (or C:\Documents and Settings\\Application Data\Mozilla for Win XP)

key3.db etc should be in there

Can't help you out with the others I'm afraid as I don't use them