See the following page for locking preferences.

• http://kb.mozillazine.org/Locking_preferences

These are all the preferences under Options - Advanced - Network - Settings:

 network.proxy.type 0 | No proxy
 network.proxy.type 4 | Auto-detect proxy settings
 network.proxy.type 5 | Use system proxy settings

 network.proxy.type 1 | Manual proxy configuration
 network.proxy.http
 network.proxy.http_port
 network.proxy.share_proxy_settings | Use HTTP proxy server for all protocols
 network.proxy.ssl
 network.proxy.ssl_port
 network.proxy.ftp
 network.proxy.ftp_port
 network.proxy.socks
 network.proxy.socks_port
 network.proxy.socks_version 4 or 5
 network.proxy.socks_remote_dns false or true
 network.proxy.no_proxies_on | domain names separated by a comma and a space

 network.proxy.type 2 | Automatic proxy configuration
 network.proxy.autoconfig_url | Proxy autoconfiguration URL

 signon.autologin.proxy false or true | Do not prompt for authentication if password is saved

I've tried this on a Mac and Windows with no luck.

I've created a text file called local-settings.js in "C:\Users\Kevin\AppData\Roaming\Mozilla\Firefox\Profiles\91e7yvh1.default". The file contents are:

pref("general.config.obscure_value", 0); // only needed if you do not want to obscure the content with ROT-13

pref("general.config.filename", "mozilla.cfg");

I've also created the mozilla.cfg file in "C:\Program Files\Mozilla Firefox" with the content:

//

lockPref("network.proxy.http", "isaout.ucdmc.ucdavis.edu"); lockPref("network.proxy.http_port", 8085); lockPref("network.proxy.no_proxies_on", "localhost, 127.0.0.1, *.ucdavis.edu"); lockPref("network.proxy.type", 1);

On the Mac, I used the same file contents except I used the directories: /Applications/Firefox.app/Contents/MacOS/defaults/pref and /Applications/Firefox.app.

Can you tell me what I'm doing wrong?

/Kevin

Like the article says,

1. mozilla.cfg must be placed in the installation folder, e.g.

C:\Program Files (x86)\Mozilla Firefox\mozilla.cfg

2. local-settings.js must be placed in the defaults\pref subfolder of the installation folder, e.g.

C:\Program Files (x86)\Mozilla Firefox\defaults\pref\local-settings.js

On a Mac, right-click (or Control+click) the Firefox icon in the Applications folder and choose Show Package Contents. The equivalent paths should be

Firefox.app/Contents/MacOS
Firefox.app/Contents/MacOS/defaults/pref

• http://kb.mozillazine.org/Installation_directory#Mac_OS_X