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Off the top of my head, I don't believe there is a way, We have also had this problem. &nbsp;But Firefox wasn't built for group policy. &nbsp;We ended up not allowing that particular group of users to install programs to their hard drives.<br />
<br />
And even if you do find one for firefox, they'll just move onto a new browser =P It's a never ending cycle.<br />

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Hi,<br />
<br />
I think you need to make your Proxy transport. If it is squid then the below link explains how to make the proxy transparent:<br />
<br />
<a href="http://www.cyberciti.biz/tips/linux-setup-transparent-proxy-squid-howto.html" rel="ugc">www.cyberciti.biz/tips/linux-setup-transparent-proxy-squid-howto.html</a>&nbsp;<br />
<br />
<br />
For MS ISA Server:<br />
<br />
<a href="http://www.eggheadcafe.com/aspnet_answers/isaconfiguration/May2006/post26977701.asp" rel="ugc">www.eggheadcafe.com/aspnet_answers/isaconfiguration/May2006/post26977701.asp</a>
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I currently have a thirdparty proxy called CCProxy that is a very basic app. &nbsp;What does it mean to make it transparent?
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From Wikipedia:<br />
<br />
Transparent and non-transparent proxy server <br />
The term &quot;transparent proxy&quot; is most often used incorrectly to mean &quot;intercepting proxy&quot; (because the client does not need to configure a proxy and cannot directly detect that its requests are being proxied). <br />
However, RFC 2616 (Hypertext Transfer Protocol -- HTTP/1.1) offers different definitions: &quot;A 'transparent proxy' is a proxy that does not modify the request or response beyond what is required for proxy authentication and identification&quot;.&quot;A 'non-transparent proxy' is a proxy that modifies the request or response in order to provide some added service to the user agent, such as group annotation services, media type transformation, protocol reduction, or anonymity filtering&quot;.<br />

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I meant this scenrio:<br />
<br />
<br />
YourNetwork &lt;---------&gt;Switch &lt;------------&gt;ProxyServerM<wbr />achine &lt;--------------&gt;Internet Gateway <br />
<br />
I presume that you have your proxy server on one of the machines of your network so people are able to access Internet directly. If you make the above scenario then users can not access Internet without accessing the proxy server. 
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I understand the plann but I dont know what to do in order to force everyone to go through the proxy rather then direct to the router.<br />
<br />
Here how the network is setup:<br />
<br />
Router: &nbsp;Draytek2800<br />
Swtich: &nbsp;Lots of them through the building.<br />
IP Range: &nbsp;192.168.0.x<br />
Server 1: &nbsp;AD, DC<br />
Server 2: &nbsp;Proxy, File Server, Mail Server<br />
Proxy: &nbsp;A small app called CCProxy on server 2003<br />
<br />
Now, I need to force everyone to speak to the proxy first not to the internet gateway direct. &nbsp;What do I need to do?
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ohhh,,<br />
<br />
its just hit me on what you are asking me to do uetian1707.<br />
<br />
Connect the ProxyServer direct to the router and not the network switch. &nbsp;This way, everyone is forced to talk to the ProxyMachine first before internet access is granted?
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Yes. Exactly this is what I am trying to say and all your machines will have the gateway address of your proxy server. This way they do not need to have proxy server settings typed in their browsers and their is no chance to bypass the proxy server.
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OK.. sounds good.. &nbsp;Now i need to investigate and ensure I set it up correctly before i end up dropping the network.<br />
<br />
Question:<br />
Do I connect the 'ProxyMachine' to the Draytek Router.<br />
Then out of the ProxyMachine from the second network card to the switch?<br />
<br />
So, it will be like this:<br />
Internet/Router-----------<wbr />----ProxyM<wbr />achine----<wbr />----------<wbr />Switch----<wbr />----------<wbr />-NetworkPC<wbr />'s<br />
Internet/Router-----------<wbr />----DHCP Server---------------Switc<wbr />h<br />
<br />
Or, do i just change the default gateway to ProxyMachine in AD policy?
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There is actually a very simple solution here. On your firewall block all HTTP/HTTPS outbound UNLESS the source IP is your proxy server.
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<div>
In the past I've come across a tool called FFAdmin (I believe) where it allowed you to push Group Policy like settings down to Firefox. I did a quick search to find you a download link, but i could not locate it. I'm sure a thorough Google search will dig up something. <br />
<br />
Hope that helps! 
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Here's the URL, i found it.<br />
<br />
<a href="http://homepages.ed.ac.uk/mcs/FirefoxADM/Readme.htm" rel="ugc">http://homepages.ed.ac.uk/mcs/FirefoxADM/Readme.htm</a>
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<div class="content wysiwyg-content">
Hi,<br />
<br />
We have 60users in the company and the odd clever ass have installed Firefox to bypass the proxy so that they can sit there and download what they want.<br />
<br />
How can I force firefox to use a proxy? &nbsp;<br />
<br />
All users are on DC via group policy that forces IE to go through the proxy already.<br />
<br />
Many Thanks
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</div>


Hi,

We have 60users in the company and the odd clever ass have installed Firefox to bypass the proxy so that they can sit there and download what they want.

How can I force firefox to use a proxy?  

All users are on DC via group policy that forces IE to go through the proxy already.

Many Thanks

How can I force Firefox to use a Proxy on the network?

Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.

Web Browsers

Network analysis is the process of identifying and remediating the processes and systems within a network, including performance, connectivity and security. The process is performed through the use of tools developed for monitoring and analyzing network activity. Network problems that involve finding an optimal way of doing something are studied under the name combinatorial optimization. Examples include network flow, shortest path problem, transport problem, transshipment problem, location problem, matching problem, assignment problem, packing problem, routing problem, Critical Path Analysis and PERT (Program Evaluation & Review Technique).

Network Analysis

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.