Mozilla's internet browser Firefox celebrates its 5th birthday today. "Five years ago today, Mozilla launched Firefox 1.0 with the belief that, as the most significant social and technological development of our time, the Internet is a public resource that must remain open and accessible to all. Within the first four days of launch, more than 1 million people had downloaded a brand new browsing experience", the open source organisation says in a blog post.

"In just five years, that number has swelled to over 330 million users worldwide; almost a quarter of Internet users worldwide choose Firefox. Today, Firefox ships in more than 70 languages and offers users more than 7000 add-ons to help customize their browsing experience".

When Firefox launched Microsoft's Internet Explorer alone controlled a whopping 99% of the browser market. Fast forward 5 years and Firefox enjoys a 23% browser market share, although with increasing competition from the likes of Opera, Apple and Google. Hit play now to see the (slightly indulgent) celebratory video above.