Working at Mozilla | Glassdoor

Mozilla Overview

Mountain View, CA
501 to 1000 employees
Nonprofit Organization
Information Technology
$10 to $25 million (USD) per year
The Mozilla Corporation (abbreviated MoCo) is a wholly owned subsidiary of the Mozilla Foundation that coordinates and integrates the development of Internet-related applications such as the Firefox and SeaMonkey web browsers and the Mozilla Thunderbird email client by a global ... Read more

Mission: Our mission is to promote openness, innovation & opportunity on the Web.

At Mozilla, we’re a global community of technologists, thinkers and builders working together to keep the Internet alive and accessible, so people worldwide ... Read more

Mozilla – Why Work For Us?

Mozilla Reviews

Rating TrendsRating Trends
Recommend to a friend
Approve of CEO
Mozilla CEO Chris Beard
Chris Beard
72 Ratings
  • Helpful (5)

    "Desktop Support"

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Former Employee - Anonymous Employee in Mountain View, CA
    Former Employee - Anonymous Employee in Mountain View, CA
    Negative Outlook
    No opinion of CEO

    I worked at Mozilla full-time (More than 5 years)


    I received opportunities to travel for work and form relationships with co-workers across the world. I was able to learn new skills from many of the colleagues that I worked with.


    It was hard to trust people there. Didn't have a clear path for career growth. Human Resources didn't feel like a trusted resource. Most management was a mess.

See All 194 Reviews

Mozilla Photos

Mozilla photo of: Outside of the San Francisco Office
Mozilla photo of: Inside the SF Offices
Mozilla photo of: New York Office
Mozilla photo of: Inside the SF Offices
Mozilla photo of: Tokyo Office
Mozilla photo of: San Francisco Offices
See All PhotosSee All

Mozilla Interviews



Getting an Interview

Getting an Interview




  1. Helpful (2)  

    Growth Engineer Interview

    Anonymous Employee
    Accepted Offer
    Negative Experience
    Average Interview


    I applied through a staffing agency. The process took 2 days. I interviewed at Mozilla in May 2017.


    It was a truly horrible experience. ...probably one of the worst I have had in my entire life. It seemed that Mozilla was happy that I had development and marketing experience. I was contacted by a recruiter at Mondo Agents on April 28th. He said that Mozilla wanted to move really fast if I am the right candidate, and that I'd probably have multiple interviews within days and then a quick job offer. I was scheduled to interview with a manager at Mozilla in the morning of May 2nd. The interview went well, and afterward he send feedback to the recruiter right away. Apparently he liked me so much that he wanted to set me up with a 2nd more technical interview on the same day in the afternoon.

    So the second interview happened that afternoon with a second person at Mozilla. The recruiter said that if all goes well I will probably get an offer immediately afterward. I didn't hear anything that day but the next day, I did indeed get the offer. I signed a contract with Mondo on May 3rd as a contractor on a contract to work for Mozilla as a Growth Engineer, and was given a start date of May 30th which was the Tuesday after Memorial day. I celebrated that weekend, I told other companies (of which was another high profile company) that had been interviewing me and requesting to interview me that I just signed on to Mozilla. I gave my two weeks notice to my then current job. I had the entire week before Memorial Day free of work, with the idea that I would start my new job on Tuesday.

    But during that week, the week of Monday, May 22nd, Mondo had been trying to request information from Mozilla about who I need to communicate with to start getting "started up" with them in the coming setup, slack, etc... Suddenly on Thursday morning, May 25th, Mondo received a 3 sentence email from Mozilla saying that Mozilla filled the position using someone internally that already worked for them, and that the had to cancel my contract.

    I essentially waited the entire month thinking I was going to start with Mozilla, quit my job, told other companies I was no longer interested in interviewing, only to find myself stranded and unemployed. I have a family, a baby girl, to think about, and now I have to deal with this.

    Then a week later, the manager at Mozilla, accepts my LinkedIn invitation, and I asked him if he could send me an official letter stating what happened so that I can forward this to other prospective employers that we under the impression that I was hired by Mozilla. I was scared that other employers would think that I was hired and immediately fired by Mozilla within a couple of weeks. But he didn't seem to know what I was talking about. He told me they did indeed find someone internally but that they never offered the job to me. He said they told Mondo that they found someone internally on Friday May 19th. If this is true, this would mean that what they (at Mondo) said about trying to contact them from Monday the 22nd until Thursday the 25th, and receiving notification on the 25th, was all a fabrication on Mondo's part. The Manager at Mozilla also said that he never interfaced with a with the recruiter I had been talking to, but rather some woman whom I never heard of. This would conflict with what the recruiter lead me to believe because on many occasions he spoke in terms of being in direct contact with with the manager.

    This list of discrepancies just goes on and on. I just don't know what to believe. I also find it odd that now that the manager at Mozilla knows what happened, he doesn't pick up the phone to call me, even after I told him to in the Linkedin chat, but he gave excuses that he was too busy to get on the was just a long LinkedIn chat. One might say that it was the recruiter who did this, but I just don't understand why they would go through such lengths to produce such an elaborate fabrication, whose end result is nothing more than to sabotage my career. All of this just doesn't make any sense. All of this only affects me in a negative way, and has no positive effect on anyone else, as far as I can see. This scheme is useless to all parties.

    If you are reading this review I would be very cautious about interviewing with Mozilla, as well as when Mondo is involved. The one good thing that might come out of this is that I am told that I can now legally put Mozilla on my resume, because I have an offer letter which I accepted stating that I would be working for Mozilla, the contract started, and it had to be canceled, which further proves that it existed. And even if this ordeal is all the work of Mondo, this still leads back to Mozilla because Mozilla hired Mondo to act on Mozilla's behalf.

    Caution my friends, caution. Apparently getting an offer from Mozilla has potential for disaster.

    Interview Questions

    • What are any examples when you faced failure in a project and how did you handle it?   Answer Question
See All 101 Interviews

Mozilla Awards & Accolades

  • CNET Editors' Review, CNET, 2014
  • Digital Leaders Fifty(Industry), Digital by default, 2013
  • Tech Radar Best Of MWC Award(People's Choice: Firefox OS), TechRadar, 2013
  • Best of MWC Award(Best Innovation: Firefox OS), LAPTOP Magazine, 2013
  • Most Trusted Internet Company for Privacy, Ponemon Institute, 2012
See More

Work at Mozilla? Share Your Experiences

  • Star
  • Star
  • Star
  • Star
  • Star
Click to Rate