gecko-dev/browser/locales/searchplugins/wikipedia-zh-TW.xml

<!-- This Source Code Form is subject to the terms of the Mozilla Public
   - License, v. 2.0. If a copy of the MPL was not distributed with this
   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->

<SearchPlugin xmlns="http://www.mozilla.org/2006/browser/search/">
<ShortName>Wikipedia (zh)</ShortName>
<Description>維基百科，自由的百科全書</Description>
<InputEncoding>UTF-8</InputEncoding>
<Image width="16" height="16">resource://search-plugins/images/wikipedia.ico</Image>
<Url type="application/x-suggestions+json" method="GET" template="https://zh.wikipedia.org/w/api.php">
  <Param name="action" value="opensearch"/>
  <Param name="search" value="{searchTerms}"/>
</Url>
<Url type="text/html" method="GET" template="https://zh.wikipedia.org/wiki/Special:搜索"
     resultdomain="wikipedia.org" rel="searchform">
  <Param name="search" value="{searchTerms}"/>
  <Param name="sourceid" value="Mozilla-search"/>
  <Param name="variant" value="zh-tw"/>
</Url>
</SearchPlugin>