Open Search : Chrome / Firefox Tab to Search
This is super ultra alternative to this extension
Step 1 : Make a File at yourdomain/opensearch.xml or you can upload this file with anyname anywhere just copy URL and replace href in step2, paste the following contents and Replace domain and others.
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/" xmlns:moz="http://www.mozilla.org/2006/browser/search/">
<ShortName>Flarum Community</ShortName>
<Description>Search Flarum Community</Description>
<Url type="text/html" method="get" template="https://discuss.flarum.org/?q={searchTerms}"/>
<Image width="16" height="16">https://flarum.org/favicon-16x16.png</Image>
<InputEncoding>UTF-8</InputEncoding>
<moz:SearchForm>https://discuss.flarum.org/</moz:SearchForm>
</OpenSearchDescription>
Step 2 : Add this small code in Header.
<link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="Flarum Community">
Step 3 : You are done, If you are unable to see browser tab to search on typing url, Simply clear your cache.
I know this is something ultra easy but only just for RESOURCES I written it here you can share your thoughts if you like it.