Privacy Search Companion автор LencoDigitexer, SeryiBaran

The extension will help to query any information through search engines that respect your privacy and anonymity. Adds search engine buttons where you choose which one you want to make the current query through. The extension reads the query and opens it in the selected search engine.

List of search engines available for use:

• DuckDuckGo
• SearXNG
• Lukol
• Brave Search
• Swisscows
• MetaGer

Source code available here.