在firefox目录searchplugins下建立以下文件（比如是 C:\Program Files\Mozilla Firefox\searchplugins )
dangdang.xml , 以utf-8保存，就可以为firefox添加当当购物搜索
<?xml version="1.0" ?>
<SearchPlugin xmlns="http://www.mozilla.org/2006/browser/search/">
<ShortName>当当网</ShortName>
<Description>当当网</Description>
<InputEncoding>GB2312</InputEncoding>
<Image width="16" height="16">data:image/x-icon;base64,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</Image>
<Url type="text/html" method="GET" template="http://search.dangdang.com/search.aspx">
<Param name="key" value="{searchTerms}"/>
<Param name="catalog" value=""/>
<Param name="SearchFromTop" value="1"/>
</Url>
<SearchForm>http://search.dangdang.com/</SearchForm>
</SearchPlugin>