Former Mozilla CEO Gary Kovacs has been named the new CEO of web security and privacy company AVG, the company announced today.

AVG has more than 150 million users around the globe, and it’s setting its sights on mobile expansion. Kovacs has a lot of experience in mobile, and while at Mozilla he helped get the Firefox OS for phones off the ground.

Some of AVG’s latest moves have been to buy up smaller companies to help bolster its product lineup. One of those companies was Level Platforms, a remote monitoring and mobile management firm. Kovacs will have to make sure these new services fit into the company and help it continue to grow.

In a canned statement, Kovacs said he’s committed to helping secure the web experience for the billions of people that are just coming online:

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We know that there are over two and a half billion people online and we anticipate another two and a half billion people coming online in the next five years. With all these people online there is going to be an increasing urgency to secure them. I have dedicated my last three years to that pursuit and with AVG building products that simplify and secure users’ digital lives, it is a natural fit. I am really excited to be here and I am looking forward to helping AVG continue to grow its business.