fxでweblio 類語辞典から検索

タイトルで言い切ってるのだけど、Firefoxの検索窓から類語辞典・シソーラス・対義語 - Weblio辞書で調べたかったので。
行が長すぎて崩れるので折りたたむ。

<SearchPlugin xmlns="http://www.mozilla.org/2006/browser/search/" xmlns:os="http://a9.com/-/spec/opensearch/1.1/">
<os:ShortName>weblio 類語辞典</os:ShortName>
<os:InputEncoding>UTF-8</os:InputEncoding>
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<os:Url type="text/html" method="GET" template="http://thesaurus.weblio.jp/content/{searchTerms}?erl=true">
</os:Url>
</SearchPlugin>