add new search engines to Firefox that are trade-free and remove the ones that are not

Add the list here:

peekier - A new way to search the web. The most privacy-oriented search engine.

Searx space - 108 online instances

Ecosia - the search engine that plants trees

Swisscows - the alternative, data secure search engine

MetaGer - Privacy Protected Search & Find. Search safely while having your privacy respected. The digital knowledge of the world must be freely accessible without paternalism and abide by states or corporations.

Mojeek - Independent, alternative, and unbiased search results with no user tracking

Gibiru - Protecting your privacy since 2009

Qwant - a search engine that respects your privacy and eases discovering and sharing via a social approach

Ambar - Document Search Engine: OCR, Store & Search. (Nodejs/Python Source Code under MIT license)

Gigablast - open source search engine. (C++ Source Code under Apache-2.0 license)

MeiliSearch - Ultra relevant, instant and typo-tolerant full-text search API. (Rust Source Code under MIT license)

Searx - Privacy-respecting, hackable metasearch engine. (Python Source Code under AGPL-3.0 license)

sist2 - Lightning-fast file system indexer and search tool. (C Source Code under GPL-3.0 license)

Yacy - Peer based, decentralized search engine server. (Java Source Code under GPL-2.0 license)

IPFS Search - Searching the Universe since 2016. (Source Code)

Magnetico - Magnetico is the first autonomous (self-hosted) BitTorrent DHT search engine suite that is designed for end-users. (Python Source Code under AGPL-3.0 license)

Magnetissimo - Search engine that indexes all popular torrent sites. (Elixir Source Code under MIT license)

Torrents.csv - A self-hostable torrent search engine. (Rust Source Code under GPL-3.0 license)

Rapidbay - Self-hosted torrent videostreaming service/torrent client that allows searching and playing videos from torrents in the browser or from a Chromecast/AppleTV/Smart TV. (Python/Docker Source Code under MIT license)

CouchPotato - CouchPotato is an automatic Video Library Manager for Movies. Automatic torrent/nzb searching, downloading, and processing at the qualities you want. (Python Source Code under GPL-3.0 license)