The document discusses various ways to get involved with Mozilla such as creating apps and add-ons for Firefox, fixing bugs, helping users, improving documentation, coding, and other contributions. Some specific opportunities mentioned are developing for Firefox OS, creating Firefox add-ons, using bugsahoy to find and fix bugs, assisting users through whatcanidoformozilla.org, updating developer documentation on mozilla.developer.org, and learning to code through resources on Mozilla's website.