We help brands connect with their audience in a meaningful way

FireBox is a game-changer WordPress Popup Plugin leveraging the power of the Gutenberg editor. It allows you to craft captivating marketing campaigns using familiar Gutenberg Blocks.


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About Us

At FireBox, we wear our WordPress expertise proudly, always eager to expand our knowledge. Our mission is clear: empower entrepreneurs to connect with their audience in meaningful ways without worrying about intricate technicalities.

We firmly believe that personalization shouldn't be daunting, and every brand deserves the best tools for creating personalized online experiences.

We've crafted a product that's not just a WordPress Popup Plugin. It's a tool designed for intuitive use, requiring no coding or design skills.

As thinkers and trailblazers, we constantly strive to improve and reimagine how things are done. We're not just about popups; we're about challenging the status quo and pitching innovative ideas that resonate with brands and their audiences.


FireBox is not just another popup builder plugin; it's a game-changer for WordPress-powered sites. Leveraging the power of the Gutenberg editor, FireBox allows you to craft captivating marketing campaigns using familiar Gutenberg Blocks.

FireBox goes beyond the ordinary, enabling the creation of beautiful and personalized popups, floating buttons, and sticky bars. It's not just about aesthetics – FireBox equips merchants with a versatile toolkit to enhance their online presence.

You can effortlessly promote special offers, fight cart abandonment, grow email lists, increase sales, and orchestrate effective marketing campaigns. It's a comprehensive WordPress solution that replaces disparate marketing tools, offering simplicity at a fraction of the cost.

FireBox is a bridge breaking down technological barriers between brands and people. Welcome to FireBox, where innovation and user-friendly solutions converge.

Founding Story

It all began with Tassos, the visionary founder of a software development company based on the Joomla CMS. Having curated an impressive array of Joomla Extensions, including the widely acclaimed EngageBox—a popup builder that secured its position as the #6 most popular extension with over 500 reviews—Tassos had already etched his legacy in the Joomla market.

In 2015, a pivotal moment arrived when Tassos found his inbox flooded with customer inquiries, all clamoring for a WordPress version of EngageBox. Despite the initial disappointment, the persistent demand sowed the seeds of transformation. By 2018, Tassos embraced change, giving rise to FireBox—a bold new venture dedicated to extending the magic of EngageBox to the vibrant WordPress community.

Fast forward to January 2020, Tassos joined forces with co-founders Stergos and David, embarking on making FireBox a reality. By April 2021, FireBox debuted on the WordPress Plugins Directory with minimal features. The journey didn't stop there, and by October 2021, FireBox evolved into a fully functional, stable release, presenting users with both Free and Pro versions. The rest, as they say, is history in the making.

Try FireBox for Free 👋

Turn your visitors into subscribers and customers with eye-catching popups, modals, floating bars, fullscreen overlays, and slide-ins.


We are a small, passionate team based in Greece. We are dedicated to supporting small and medium brands on their journey to online success.

Tassos Marinos

Tassos Marinos

Team Leader

Tassos is the founder and team leader at FireBox. With a background in user-centric design and full-stack development, he is dedicated to ensuring that FireBox is user-friendly and aesthetically beautiful. Tassos lives in Greece with his wife and daughter.

Stergos Zamagias

Stergos Zamagias


Stergos is the lead developer and co-founder. He started his WordPress journey 10+ years ago by creating plugins and themes. A self-taught web developer that loves learning new technologies and building on the web. Stergos is also one of the customer care specialists.

David Karathomas

David Karathomas


David is our designer. He's working hard to make our plugins both visually appealing and user-friendly. With a lot of design expertise, his talent for creating awesome user experiences is helping us to make it even easier to use our plugins. Originally from Greece, he now lives in Germany.

Start of FireBox
We hit 1K installs
We hit 2K installs
We hit 1K MRR
We hit 4K installs