This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Locking Firefox settings

  • 4 replies
  • 4 have this problem
  • 1 view
  • Last reply by karchoker

more options

Hello Everybody,

i have a small problem blocking the settings on Firefox 38.0.1. I've created 3 files: 1. override.ini => placed on "%ProgramFiles(x86)%\Mozilla Firefox\browser\

[XRE] EnableProfileMigrator=false

2. local-settings.js => placed on "%ProgramFiles(x86)%\Mozilla Firefox\defaults\pref\

pref("general.config.filename", "mozilla.cfg"); pref("general.config.obscure_value", 0); pref("browser.rights.3.shown", true);

3. mozilla.cfg => placed on %ProgramFiles(x86)%\Mozilla Firefox\, the same place as firefox.exe

//Firefox Default Settings // set Firefox Default homepage lockPref("browser.startup.homepage","http://www.google.com");

// disable default browser check pref("browser.shell.checkDefaultBrowser", false); pref("browser.startup.homepage_override.mstone", "ignore");

// disable application updates pref("app.update.enabled", false)

// disables the 'know your rights' button from displaying on first run pref("browser.rights.3.shown", true);

// disables the request to send performance data from displaying pref("toolkit.telemetry.prompted", 2); pref("toolkit.telemetry.rejected", true);

// set a default proxy settings HTTP lockPref("network.proxy.http";10.1.1.1); lockPref("network.proxy.http_port";8080); lockPref("network.proxy.type", 1); lockPref("network.proxy.no_proxies_on", "localhost, 127.0.0.1"); lockPref("network.proxy.share_proxy_settings", true);

But the user still can change the settings. Maybe i'm doing something wrong. Any help is appreciated. Thanks in advanced.

Hello Everybody, i have a small problem blocking the settings on Firefox 38.0.1. I've created 3 files: 1. override.ini => placed on "%ProgramFiles(x86)%\Mozilla Firefox\browser\ [XRE] EnableProfileMigrator=false 2. local-settings.js => placed on "%ProgramFiles(x86)%\Mozilla Firefox\defaults\pref\ pref("general.config.filename", "mozilla.cfg"); pref("general.config.obscure_value", 0); pref("browser.rights.3.shown", true); 3. mozilla.cfg => placed on %ProgramFiles(x86)%\Mozilla Firefox\, the same place as firefox.exe //Firefox Default Settings // set Firefox Default homepage lockPref("browser.startup.homepage","http://www.google.com"); // disable default browser check pref("browser.shell.checkDefaultBrowser", false); pref("browser.startup.homepage_override.mstone", "ignore"); // disable application updates pref("app.update.enabled", false) // disables the 'know your rights' button from displaying on first run pref("browser.rights.3.shown", true); // disables the request to send performance data from displaying pref("toolkit.telemetry.prompted", 2); pref("toolkit.telemetry.rejected", true); // set a default proxy settings HTTP lockPref("network.proxy.http";10.1.1.1); lockPref("network.proxy.http_port";8080); lockPref("network.proxy.type", 1); lockPref("network.proxy.no_proxies_on", "localhost, 127.0.0.1"); lockPref("network.proxy.share_proxy_settings", true); But the user still can change the settings. Maybe i'm doing something wrong. Any help is appreciated. Thanks in advanced.

Modified by karchoker

Chosen solution

hello, you'll have to be exact with punctuation, since each mistake will cause the whole configuration to fail...

// set Firefox Default homepage lockPref("browser.startup.homepage","http://www.google.com");

// disable default browser check pref("browser.shell.checkDefaultBrowser", false); pref("browser.startup.homepage_override.mstone", "ignore");

// disable application updates pref("app.update.enabled", false);

// disables the 'know your rights' button from displaying on first run pref("browser.rights.3.shown", true);

// disables the request to send performance data from displaying pref("toolkit.telemetry.prompted", 2); pref("toolkit.telemetry.rejected", true);

// set a default proxy settings HTTP lockPref("network.proxy.http", "10.1.1.1"); lockPref("network.proxy.http_port",8080); lockPref("network.proxy.type", 1); lockPref("network.proxy.no_proxies_on", "localhost, 127.0.0.1"); lockPref("network.proxy.share_proxy_settings", true);

Read this answer in context 👍 2

All Replies (4)

more options

Chosen Solution

hello, you'll have to be exact with punctuation, since each mistake will cause the whole configuration to fail...

// set Firefox Default homepage lockPref("browser.startup.homepage","http://www.google.com");

// disable default browser check pref("browser.shell.checkDefaultBrowser", false); pref("browser.startup.homepage_override.mstone", "ignore");

// disable application updates pref("app.update.enabled", false);

// disables the 'know your rights' button from displaying on first run pref("browser.rights.3.shown", true);

// disables the request to send performance data from displaying pref("toolkit.telemetry.prompted", 2); pref("toolkit.telemetry.rejected", true);

// set a default proxy settings HTTP lockPref("network.proxy.http", "10.1.1.1"); lockPref("network.proxy.http_port",8080); lockPref("network.proxy.type", 1); lockPref("network.proxy.no_proxies_on", "localhost, 127.0.0.1"); lockPref("network.proxy.share_proxy_settings", true);

more options

Hello philipp,

Thanks for your answer. Yes is like i have it, i don't know why when i put my question the editor mess all the code, check the screenshot.

more options

there's a semicolon missing at the end of the first line i've highlighted & there have to be colons instead of semicolons in the other two.

more options

Hi philipp,

Was my fault, thanks for your help. i really appreciate.