There are many websites that claim to have a "lost" or "uncensored" English translation of the Bhavishya Purana. Most of these are modern forgeries or fan-fiction incorporating Nostradamus-style quatrains. Stick to the translations published by major Indian publishers (Motilal Banarsidass, Bharatiya Vidya Bhavan, or Sri Satguru Publications).
: A leading source for free digital books, hosting several English translations. You can find the complete Bhavishya Purana PDF and specific volumes such as Bhavishya Purana Vol 1 by Acharya Sriram Sharma .