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If you're running a WordPress website and using MailerLite for email marketing, you're already halfway there.

The missing piece?

Capturing visitors before they leave.

Most visitors won't actively look for your newsletter signup page. Even if you have a form in your footer or sidebar, it's passive. It waits.

A popup changes that. It appears at the right moment, captures attention, and turns anonymous visitors into subscribers.

In this guide, you'll learn how to create a MailerLite...

FireBox has grown steadily over the past few years. What started as a popup plugin is now a tool that helps WordPress site owners and eCommerce stores capture leads, recover carts, and increase sales.

With smart triggers, revenue tracking, advanced targeting, and an improved builder, FireBox makes it easier to run campaigns that deliver real results.

To keep improving the product and supporting future development, we'll be updating our pricing plans on February 1, 2026.

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