How To Change User Agent in Mozilla Firefox
If you want to change Firefox’s User Agent there is a way to do it.
Type in your browser, in the address line, about:config and you will see a full list of the variables used. Now, type useragent in the filter line and search a string identified with general.useragent.override (to modify this line just double click the entry and make your changes).
User agent value can be specified in the defaults\pref\all.js file by adding the “general.useragent.override” property, as in this example:
pref( “general.useragent.override”, “Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)” );
There is a more easily way to change User Agent. Get a User Agent Switcher and will run on any platform that these browsers support including Windows, Mac OS X and Linux.
Common User-Agent Values
Googlebot/2.X (http://www.googlebot.com/bot.html)
The Google Web crawler.
Mozilla/3.0 (Win95; I)
- Netscape Navigator 3.0 on Windows 95.
- Mozilla/3.01 (Macintosh; PPC)
- Netscape Navigator 3.01 on a Macintosh.
- Mozilla/4.0 (compatible; MSIE 4.01; AOL 4.0; Windows 98)
- The AOL browser, based on Microsoft Internet Explorer 4.01, on Windows 98.
- Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
- Microsoft Internet Explorer 6.0 on Windows 2000.
- Mozilla/5.0 (compatible; Konqueror/2.2.2; Linux 2.4.14-xfs; X11; i686)
- Konqueror 2.2.2 for Linux.
- Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.2) Gecko/20010726 Netscape6/6.1
- Netscape 6.1 on Windows 98.
- Opera/6.x (Windows NT 4.0; U) [de]
- The German version of Opera 6.x on Windows NT.
- Opera/7.x (Windows NT 5.1; U) [en]
- The English version of Opera 7.x on Windows XP.
Download Free Proxy Scripts
Here they are the most popular free proxy scripts to download.
PHPROXY SCRIPT
This script programmed in PHP language is a Web HTTP proxy.
Options available:
- Disable JavaScript
- Accept cookies
- Show images
- Strip out meta title from the Webpage
CGI PROXY SCRIPT
This script is the most common proxy software available on the Web. Cgi Proxy Script allows logging into websites youtube, myspace, etc. Uses much RAM but less bandwidth than PHProxy Script.
ZELUNE PROXY SCRIPT
Zelune uses Curl instead of PHP or CGI.
SURROGAFIER PROXY SCRIPT
Free Php Proxy script and easy to install and provides a three tier Web Proxy.
Options available:
- Remove cookies
- Remove HTTP referer
- Remove HTTP user-agent field
- scripts on the page and objects
- etc

