Lilo is a free search engine available as a Firefox extension, designed to support charities focused on ecology, solidarity, and animal welfare. Users can earn 'water drops' with each search, which can be donated to selected associations. This initiative promotes a unique way of giving back while conducting online searches, making it appealing to users who value social responsibility.

The platform prioritizes user privacy by ensuring that personal data is not sold and users will not encounter targeted ads based on their search history. By partnering with Microsoft Bing, Lilo enhances search capabilities while maintaining the quality of results. With over 5 million euros already donated to various causes, Lilo encourages more users to transition from traditional search engines to support important social initiatives.