random_searx_uxp_plugin/sample/search.xml

<?xml version="1.0" encoding="UTF-8"?>
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/" xmlns:moz="http://www.mozilla.org/2006/browser/search/">
    <ShortName>Dottoro</ShortName>
    <LongName>Dottoro Search Engine</LongName>
    <Description>Use Dottoro to search on dottoro.com</Description>
    <Url type="text/html" method="get" template="http://www.dottoro.com/search.php?query={searchTerms}" />
    <Image height="16" width="16" type="image/x-icon">http://www.dottoro.com/favicon.ico</Image>
    <InputEncoding>UTF-8</InputEncoding>
    <OutputEncoding>UTF-8</OutputEncoding>
    <moz:SearchForm>http://www.dottoro.com/search.php</moz:SearchForm>
</OpenSearchDescription>