MozFest is co-designed and co-created by Mozilla and its communities.

All information provided during volunteer registration will be handled in accordance with the MozFest Volunteer Privacy Policy.


Every year MozFest takes over all nine floors of Ravensbourne University for an action-packed weekend featuring 300 participatory sessions, a Friday kick-off "Science Fair, our Dialoges and Debates series, a Saturday night celebration and a Sunday closing party… drawing over 2500 attendees from around the corner, and around the world. 

It’s a huge, blow-out event that couldn’t take place without the time, hard work and dedication of our crew of weekend volunteers.


Our volunteers do everything from registering participants and staffing welcome desks to solving last-minute tech issues and assisting backstage with our Dialoges & Debates speakers. We do our best to place volunteers in roles they prefer; a volunteer experience might include a chance to try out several roles. We hold orientation sessions at Mozilla’s London office in September and October where volunteers meet, learn more, and prepare for the event. These are also recorded and available to watch on AirMozilla.

Why volunteer? Volunteers are at the center of the action, making connections, solving problems, gaining new skills, and keeping the festival humming along.  It’s a great behind-the-scenes chance to learn how this incredible event unfolds. If you’re a Mozilla fan and a supporter of internet health, it’s the perfect way to contribute to the cause. And if you’re a newcomer to the Festival, it’s a way to join in, have a role and a team right off the bat. 

Mozilla covers the cost of each volunteer’s ticket, provides meals for on-site volunteers, and provides each volunteer with a cool MozFest t-shirt. Volunteers are asked to contribute four hours of their time during the Festival. 

Unfortunately, we cannot cover travel to and from the event, provide accommodation. We are also unable to sponsor visa applications, however if you are accepted into the volunteer programme we can send a Letter of Participation to help support your application. 

Read more on our volunteer wiki, and check out this blog post about the volunteer experience.