In this article, we will explore in detail Browser fingerprint, a topic that has had a significant impact on various aspects of contemporary society. Since its emergence, Browser fingerprint has captured the attention of academics, experts in the field and the general public, generating debate and interest around its implications. Over the years, Browser fingerprint has evolved and acquired new nuances, becoming a reference point that has marked a before and after in different areas. Through a comprehensive analysis, we will examine the different dimensions of Browser fingerprint, from its origin to its relevance today, as well as its possible future focus. In addition, we will address the various perspectives and opinions that have emerged around this phenomenon, with the aim of providing a comprehensive and enriching vision of Browser fingerprint.