Collection:Search engines

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Disclaimer: OpenSearch add-ons have been removed from https://addons.mozilla.org/en-US/firefox/. "October 21, 2019 update: we have heard several requests to explain the rationale behind deprecating OpenSearch. From a security standpoint, Search Engine add-ons provide an attack vector for malicious actors to compromise user profiles. Because Search Engine add-ons are unsigned, Mozilla has limited ability to discover, block or mitigate malicious actors." - https://blog.mozilla.org/addons/2019/10/15/search-engine-add-ons-to-be-removed-from-addons-mozilla-org/

You can still add website search engines with OpenSearch <link> (see #Implementation) to IceCat. Just visit the site and click on Page actions -> Add search engine located right to the location bar (for IceCat version 57 or later) or Search -> Add in earlier versions.

Clearnet OpenSearch engines with SSL

These search engines are not added to IceCat:

Requested sites

Tor OpenSearch engines with SSL

These search engines must be used by Tor Browser but they are not added by default:

Implementation

Only websites with OpenSearch <link> (The External Resource Link element) can be added. For example https://duckduckgo.com/html/ has this HTML:

<link title="DuckDuckGo (HTML)" type="application/opensearchdescription+xml" rel="search" href="/opensearch_html.xml" />



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