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How to change homepage in Internet Explorer using C #?

Is it possible to change the homepage in Internet Explorer in a C # application? A solution for other browsers (Firefox, Chrome) would also be nice.

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Well, for IE you need to set the registry key:

HKCU\Software\Microsoft\Internet Explorer\Main\Start Page

For firefox, you will need to edit the js: file prefs.js. This can be found in:C:\Users\ [USERNAME]\AppData\Roaming\Mozilla\Firefox\Profiles\ [User Subfolder]

Chrome stores data in: C:\Users\<username>\AppData\Local\Chromium\User Data\Defaultin a file Preferences. This is in JSON format. Editing should not be a problem

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Internet Explorer Start Page HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main ( ), Registry class Microsoft.Win32 ( ):

RegistryKey startPageKey = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Internet Explorer\Main", true);
startPageKey.SetValue("Start Page", "http://stackoverflow.com");
startPageKey.Close();

, .

+4

, . . # , .

IE

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"Start Page"="http://www.yourwebsite.com/"

Windows

(IE) #?

FireFox

Firefox , $APPDATA\Mozilla\Firefox\Profiles [ name] , , prefs.js, : user_pref ( "browser.startup.homepage",....);

, $APPDATA\Mozilla\Firefox\profiles.ini. [ #] = 1, Path =...

, ( ), , Wiki.

-Stu

public static void SetMozilla(string strURL)
        {
            try
            {
                string strSystemUname = Environment.UserName.ToString().Trim();
                string systemDrive = Environment.ExpandEnvironmentVariables("%SystemDrive%");
                string strDirectory = "";
                string strPrefFolder = "";
                if (Directory.Exists(systemDrive + "\\Documents and Settings\\" + strSystemUname + "\\Application Data\\Mozilla\\Firefox\\Profiles"))
                {
                    strDirectory = systemDrive + "\\Documents and Settings\\" + strSystemUname + "\\Application Data\\Mozilla\\Firefox\\Profiles";
                }
                else if (Directory.Exists(systemDrive + "\\WINDOWS\\Application Data\\Mozilla\\Firefox\\Profiles"))
                {
                    strDirectory = systemDrive + "\\WINDOWS\\Application Data\\Mozilla\\Firefox\\Profiles";
                }
                if (strDirectory.Trim().Length != 0)
                {
                    System.IO.DirectoryInfo oDir = new DirectoryInfo(strDirectory);
                    //System.IO.DirectoryInfo[] oSubDir;
                    //oSubDir = oDir.GetDirectories(strDirectory);
                    foreach (DirectoryInfo oFolder in oDir.GetDirectories())
                    {
                        if (oFolder.FullName.IndexOf(".default") >= 0)
                        {
                            strPrefFolder = oFolder.FullName;
                            CreatePrefs(strURL, strPrefFolder);
                        }
                    }

                }
            }
            catch
            { }
        }
        private static void CreatePrefs(string strURL, string strFolder)
        {
            StringBuilder sbPrefs = new StringBuilder();
            sbPrefs.Append("# Mozilla User Preferences\n\r");
            sbPrefs.Append("/* Do not edit this file.\n\r*\n\r"); 
            sbPrefs.Append("* If you make changes to this file while the application is running,\n\r");
            sbPrefs.Append("* the changes will be overwritten when the application exits.,\n\r*\n\r"); 
            sbPrefs.Append("* To make a manual change to preferences, you can visit the URL about:config\n\r");
            sbPrefs.Append("* For more information, see http://www.mozilla.org/unix/customizing.html#prefs\n\r");
            sbPrefs.Append("*/\n\r");
            sbPrefs.Append("user_pref(\"app.update.lastUpdateTime.addon-background-update-timer\", 1188927425);\n\r");
            sbPrefs.Append("user_pref(\"app.update.lastUpdateTime.background-update-timer\", 1188927425);\n\r");
            sbPrefs.Append("user_pref(\"app.update.lastUpdateTime.blocklist-background-update-timer\", 1188927425);\n\r");
            sbPrefs.Append("user_pref(\"app.update.lastUpdateTime.search-engine-update-timer\", 1188927425);\n\r");
            sbPrefs.Append("user_pref(\"browser.anchor_color\", \"#0000FF\");\n\r");
            sbPrefs.Append("user_pref(\"browser.display.background_color\", \"#C0C0C0\");\n\r");
            sbPrefs.Append("user_pref(\"browser.display.use_system_colors\", true);\n\r");
            sbPrefs.Append("user_pref(\"browser.formfill.enable\", false);\n\r");
            sbPrefs.Append("user_pref(\"browser.history_expire_days\", 20);\n\r");
            sbPrefs.Append("user_pref(\"browser.shell.checkDefaultBrowser\", false);\n\r");
            sbPrefs.Append("user_pref(\"browser.startup.homepage\", \"" + strURL +"\");\n\r");
            sbPrefs.Append("user_pref(\"browser.startup.homepage_override.mstone\", \"rv:1.8.1.6\");\n\r");
            sbPrefs.Append("user_pref(\"browser.visited_color\", \"#800080\");\n\r");
            sbPrefs.Append("user_pref(\"extensions.lastAppVersion\", \"2.0.0.6\");\n\r");
            sbPrefs.Append("user_pref(\"intl.charsetmenu.browser.cache\", \"UTF-8, ISO-8859-1\");\n\r");
            sbPrefs.Append("user_pref(\"network.cookie.prefsMigrated\", true);\n\r");
            sbPrefs.Append("user_pref(\"security.warn_entering_secure\", false);\n\r");
            sbPrefs.Append("user_pref(\"security.warn_leaving_secure\", false);\n\r");
            sbPrefs.Append("user_pref(\"security.warn_submit_insecure\", false);\n\r");
            sbPrefs.Append("user_pref(\"security.warn_submit_insecure.show_once\", false);\n\r");
            sbPrefs.Append("user_pref(\"spellchecker.dictionary\", \"en-US\");\n\r");
            sbPrefs.Append("user_pref(\"urlclassifier.tableversion.goog-black-enchash\", \"1.32944\");\n\r");
            sbPrefs.Append("user_pref(\"urlclassifier.tableversion.goog-black-url\", \"1.14053\");\n\r");
            sbPrefs.Append("user_pref(\"urlclassifier.tableversion.goog-white-domain\", \"1.23\");\n\r");
            sbPrefs.Append("user_pref(\"urlclassifier.tableversion.goog-white-url\", \"1.371\");\n\r");
            StreamWriter writer = new StreamWriter(strFolder + "\\prefs.js");
            writer.Write(sbPrefs.ToString()); 
            writer.Close();
            writer.Dispose();
            GC.Collect();
        }

CHROME

Google Chrome

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IE: HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\\

Firefox: ( )

Chrome: " " : C:\Users\%USERNAME%/AppData\AppData\Local\Google\Chrome\User Data\Default

.NET RegistryKey. .

+2

, , : HKCU\Software\Policies\Microsoft\Internet Explorer\\

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