As tech companies like Google, GitHub, and Amazon clash with workers on a range of ethical issues, Mozilla has taken an unusual, if not unprecedented, stance on labor organizing for a major tech company.

The Mozilla Foundation, the non-profit arm of the company known for its privacy-friendly web browser Firefox, released a guide today for helping students navigate ethical issues in the tech industry, in particular, during the recruitment process. The guide advises students not to work for companies that build technology that harms vulnerable communities, and to educate themselves "on governance" inside companies before taking a job. It also discusses unions drives, walkouts, petitions, and other forms of worker organizing.