Changing User Agent for Firefox Web Browser改变用户代理为Firefox网页浏览器

User agent strings of Mozilla FireFox web browser allow web sites and web servers to identify which browser visitors used to browse the web page, and typically together with such as the application name, version, host operating system, and language.用户代理字符串的Mozilla Firefox Web浏览器允许网站和网络服务器，以确定哪些访问者使用的浏览器浏览网页，并通常一起，如应用程序名称，版本，主机操作系统和语言。 By changing user agent, sometimes, one can get access to restricted part of a website with extra contents that normally open only to bots, or search engine crawlers.通过改变用户代理，有时，人们可以获取受限制的一个组成部分，网站与额外的内容通常开放不仅漫游，或搜寻引擎的搜寻器。 This kind of area typical example is “Member Only” forums or sites that don’t want to lose out on search engine traffic.这种面积典型的例子是， “会员，只有”论坛或网站不想失去列于搜寻引擎的流量。

Modification of user agent string also enable surfers to trick websites into believing that they are actually using a particular web browser or using specific system in order to avoid and disable advertising display or junk ads that targeted to specific segment of viewers of the websites only.修改用户代理字符串，也让浏览网站的把戏，以为他们其实是使用某个特定的Web浏览器或使用的具体制度，以避免和禁用的广告显示或滥发广告，针对特定群体的观众，本网站只。

In Firefox, there are at least 2 ways to change the default user agent strings.在Firefox中，至少有2种方式更改默认的用户代理字符串。 The first way is by using第一种方法是用 User Agent Switcher用户代理交换机 add-on extension for Firefox, popularly used by MegaUpload hacker to添加对扩展Firefox的，普遍使用的megaupload黑客 bypass country download slot limit国家绕道下载插槽限制 . 。

Once installed and restarted Firefox, simply go to Tools -> User Agent Switcher, and you will see a list of user agents which you can choose.一旦安装并重新启动Firefox时，只需转到工具“ ->用户代理交换机，您会看到一个列出用户代理商，您可以选择。 By default there is only 3 user agents listed, namely Internet Explorer 6, Netscape and Opera.默认情况下是只有3用户代理上市，即是Internet Explorer 6 ， Netscape和歌剧。 To add more, simply follow this steps:要添加更多，只要按照这个步骤进行：

1. Go to Tools -> User Agent Switcher -> Options.去工具“ ->用户代理交换机- >”选项。
2. Then click on User Agents and then click on Add.然后按一下用户代理，然后点击添加。
3. Key in the necessary information for your custom user agent.关键在必要的信息，为您的自定义用户代理。 For example, for MegaUpload toolbar user agent, try the following configuration:例如，对于megaupload工具栏的用户代理，请尝试以下配置：

   Description: MegaUpload描述： megaupload
   User Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Alexa Toolbar)用户代理： mozilla/4.0 （兼容; msie 6.0的Windows NT 5.1 ; sv1 ; Alexa的工具栏）

   If you want to simulate surfing as Google search engine spider, try to add the following instead:如果您想要模拟冲浪，作为Google搜索引擎的蜘蛛，尝试新增以下，而非：

   Description: Googlebot 2.1描述： Googlebot的2.1
   User Agent: Googlebot 2.1用户代理： Googlebot的2.1

   To fake as Apple iPhone’s Safari browser, use the假苹果iphone的Safari浏览器，使用 iPhone user agent iphone用户代理 . 。

4. Finish off by clicking on OK twice.完成小康按一下就确定两次。

The second method that you can modify the user agent in Firefox is by performing the following steps, which do not require any download:第二个方法，您可以修改用户代理在Firefox是通过执行下列步骤，不需要任何下载：

1. Open up Firefox browser.打开Firefox浏览器。
2. In the adderss bar, type the following:在adderss酒吧，键入以下内容：

   about:config约：配置

3. You will see lots of preference names and their respective value.您会看到很多优惠的姓名及各自的价值。 Search for “general.useragent.extra.firefox” by scrolling alphabetically or using filter.搜索“ general.useragent.extra.firefox ”滚动按字母顺序或使用过滤器。
4. Right click and select Modify or double click on it.点击右键并选择修改或双击它。
5. In the Enter string value dialog box, type in the user agent string that you want to simulate, such as “Googlebot 2.1″ to surf as Google spider bot.在输入字符串值对话框中，键入，在用户代理字符串您想要模拟，如“ Googlebot的2.1 ”冲浪为Google蜘蛛的BOT 。
6. To change back to the default user agent, simply right click on the line and select Reset.要改变回预设的用户代理，只需按一下滑鼠右键的路线和选择重设。

IMPORTANT : This is a machine translated page which is provided "as is" without warranty. 重要说明 ：这是一个机器翻译网页是“按原样”提供的担保。 Machine translation may be difficult to understand.机器翻译可能很难理解。 Please refer to请参阅 original English article英文原版的文章 whenever possible.只要有可能。

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This entry was posted on Friday, July 13th, 2007 at 4:09 pm and is filed under 此项目被张贴于周五， 2007年7月13日在下午4时09分，并提交下 Tips & Tricks 提示和技巧 . 。 You can follow any responses to this entry through the 您可以按照任何的反应，此项目通过 RSS 2.0 2.0 feed. 喂养。 You can 您可以 leave a response 留下的回应 , or ，或 trackback Trackback跟踪 from your own site. 从你自己的网站。