LexiQuo to the searchengine box of firefox:

Download and save this file to the subdirectory "searchplugins" in your firefox profile. Or alternatively copy and paste the following lines and save them to "searchplugins/lexiquo.xml" in your firefox profile directory.

<SearchPlugin xmlns="http://www.mozilla.org/2006/browser/search/" xmlns:os="http://a9.com/-/spec/opensearch/1.1/">
<os:ShortName>LexiQuo</os:ShortName>
<os:Description>LexiQuo Search</os:Description>
<os:InputEncoding>UTF-8</os:InputEncoding>
<os:Image width="16" height="16">data:image/png;base64,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</os:Image>
<os:Url type="text/html" method="GET" template="http://www.lexiquo.net/lexiquo_result.html?DEU&Keine&pro&{searchTerms}&google">
</os:Url>
</SearchPlugin>

BTW, you can pretty easily create your own searchplugins at www.searchplugins.net.]]>