Advanced Profanity Filter is a free Firefox extension designed to enhance online communication by filtering out inappropriate language. This tool offers various filter modes, including Censor, Substitute, and Remove, allowing users to customize their experience based on personal preferences. Additionally, it features customizable word and substitution lists, making it adaptable to individual needs.

The extension works seamlessly across numerous popular social media platforms such as Facebook, Pinterest, Reddit, and Twitter. Moreover, it provides audio muting for videos on supported sites like Amazon Video, Hulu, Netflix, Plex, and YouTube. Users can also add their own custom filters for a more tailored experience. For more detailed information, users can refer to the Getting Started page.