Céline Villaneau

freelance visual designer

Increasing Retention at Mozilla VPN

Mozilla VPN is a virtual private network—a subscription service designed to protect users’ connections and enhance online privacy across devices. I was tasked with redesigning the onboarding email journey as part of the lifecycle marketing efforts to increase retention across six languages.

As the Senior Designer on this project, I led discussions with stakeholders, managed the workflow and structure of the email journey in collaboration with the Messaging Lead and their team, and oversaw the final visual design, working alongside our in-house Visual Designer.

Low-fi mockups of the email sequence

The problem

The previous onboarding emails had low open and click-through rates. They contained outdated product information, and key details were buried under cross-selling advertisements. Although users had already subscribed, they were not engaged, leading to a decline in subscription renewals.

The solution

We refocused the emails on Mozilla VPN and its subscribers, emphasizing the benefits, features, and support available with their new account. The tone remained conversational while still including technical details. Key information, such as links to support, was repeated to improve accessibility.

For the visual design, we prioritized accessibility and cross-inbox compatibility, refining the existing Mozilla VPN design system to enhance usability.

Outcome & Impact

The redesigned emails were clear, focused, and easy to navigate. Using a modular content block system allowed for faster email creation, easier translation, and seamless A/B testing to optimize performance.

Closing Statement

Although my time at Mozilla ended before the emails were launched, this project reinforced the importance of systematic design, iterative reviews, and close collaboration with content teams to create scalable and effective marketing assets.

Inbox cross-testing: default light mode on the left and inverted dark mode on the right
Content blocks system
Hi-fi mockups of the three emails

  • Evolving Firefox Brand Guidelines
  • Driving Product Growth Through Branding, Systems, and Editorial
  • Building a Challenger Brand
  • Empowering the Pontoon Community
  • Increasing Retention at Mozilla VPN
  • Standing Out in the Internal Communications Market