Firefox Browser Branding

Head of Design
2020

Context

The Team

  • Jennifer Rouse - UX Design Lead
  • Mark Weaver - Brand Design Lead
  • James Dybvig - Motion Design
  • Rob Antley - Copy Writer

My responsibilities

As Head of Brand Design at Mozilla, I led the creative vision and execution of Firefox’s brand evolution—shaping a cohesive and modern visual identity across a diverse range of products, platforms, and touchpoints. From strategy to implementation, I worked closely with cross-functional teams to ensure every expression of the brand reflected our values of openness, trust, and user empowerment. Throughout the process, we grounded our decisions in user insights and iterative testing to create a flexible yet recognizable system that connected with global audiences.

The Situation

Firefox, Mozilla’s consumer-facing brand, has existed for over two decades. For much of its history, the brand was developed and maintained by a passionate volunteer community. While the Firefox team had created a set of brand guidelines, they lacked the sophistication, clarity, and scalability expected of a global brand.

Upon auditing Firefox's brand assets, it was evident that there was minimal consistency, a lack of cohesive visual systems, and unclear usage rules. The brand needed a structured and strategic overhaul to align with its global presence and ambitious mission.

Key Problems

  • Outdated Format: The brand guidelines existed only in a PDF—difficult to access, share, and prone to duplication of outdated versions.
  • Disorganized: The guideline layout lacked a grid system, with disorganized wide text boxes making it hard to navigate and apply.
  • Unclear Rules: The guidelines were vague and open to interpretation, leading to inconsistent implementation.
  • Missing Audience Insights: There was no defined audience, making it unclear who we were designing for.
  • Lack of Focus: The original palette was described as “a rainbow—use whatever,” leading to visual chaos.
  • No Digital Typeface Substitutes: There were no web-safe or fallback typography options.
  • Inconsistent Visual Elements: Brand shapes were used without consistency or purpose.
  • Missing Core Assets: There was no iconography system, illustration framework, tone of voice, or design system in place.

The process

  1. Identify needs and prioritize
  2. Develop a strategic roadmap
  3. Build a cross-functional team
  4. Align with key stakeholders and gain buy-in
  5. Establish a cadence of communication and iterative releases
  6. Conduct quarterly reviews and refinements

Core Deliverables & Priorities

  • Brand audit and competitive analysis
  • Master brand color system
  • Iconography and illustration systems
  • Shape rules and usage guidelines
  • Web background rules (included in v5.0)
  • Co-branding framework
  • Video and motion guidelines
  • Firefox character development
  • Tone of voice and copywriting standards
  • Presentation templates
  • Universal rules (textures, patterns, emoticons, snippets)
  • Design system integration (Protocol)

The Work

Guiding Principles: The Four Rights

At the core of Firefox’s brand are four inalienable digital rights. These principles guide every brand decision:

  • Safety: You deserve to be online without fear. Firefox protects your privacy and identity by default.
  • Control: You deserve access to the whole internet. Firefox avoids manipulation and bias.
  • Choice: You deserve innovation that serves you, not corporate interests.
  • Transparency: You deserve to know how your data is used. Firefox operates with radical honesty.

Brand Personality

Radical.

Kind.

Open.

Opinionated.

These four words form the backbone of our tone, design, and expression. They are intentionally paradoxical—capturing the brand's bold mission and human warmth.

Competitive and Cultural Insights

We continuously audited brand expression across all Firefox touchpoints globally. We also studied Tier 1 market cultures to ensure local relevance. I led ongoing competitive reviews to identify whitespace and opportunities to visually differentiate.

audit-1-1
audit-2-1

Color System

Before: “Use all the colors” → chaos.

After: A refined system with one core master palette (4 colors) and three secondary palettes for flexibility across products and campaigns.

The primary palette anchors Firefox’s identity and embodies values of privacy and transparency. Secondary palettes support thematic and product-based differentiation.


Screen-Shot-2020-09-22-at-2.45.34-PM
Screen-Shot-2020-09-22-at-2.50.09-PM

Iconography

Previously, multiple inconsistent icons (e.g., shield icons) coexisted in the same flows. We established a clear system:

  • Mini-Icons: Functional, low-fidelity icons for UI use
  • High-Fidelity Icons: For marketing and storytelling


I led a cross-disciplinary team of product and marketing designers to co-create this system, ensuring coherence and flexibility.

Shape Language

Original shapes, nicknamed “noodles,” were inconsistently used, often oversized and abstract. 👎

old-shapes

Solution:

  • Define usage rules (3–4 shapes per composition)
  • Use recognizable proportions
  • Apply meaningfully in backgrounds, illustrations, image masks, and layouts
  • Emphasize white space and balance
shapes-formula
Firefox-Brand-images-shapes
Firefox-Brand-images2
Firefox-Brand-images3
Firefox-Brand-images1

The Zap

The Zap became one of Firefox’s most iconic brand elements—a whimsical, handmade line element that adds energy, movement, and human character.

Use Cases: Navigation, videos, websites, campaigns, UIs, and more.

Rules for Use:

  • Use the full gradient
  • Rounded corners only
  • Solid, continuous lines
  • Subtle curves, no sharp zig-zags
  • Maximum of 3 zags per Zap


The Zap reinforces that Firefox is a human-centered brand made by real people.


image3
image7
image6-1
image2
image5
zaps
Zap-install
pop-zap

Illustration System

Firefox illustrations are always informative—not decorative. We developed a 3-tier system to meet different communication needs:

pictogram

Pictograms: Simple metaphors to convey clear ideas

image11-1

Spot Illustrations: Visual support for copy, medium detail

freetyle

Freestyle Illustrations: Concept-driven artwork, ideal for social media and storytelling

spot-ilu
new-ilo

Protocol: The Firefox Design System

Protocol is the shared design system for all Mozilla and Firefox digital products.
 It includes:

  • Reusable coded components
  • Consistent design language
  • Accessibility standards
  • Scalable content guidelines


Using Protocol ensures coherence across Firefox web experiences and dramatically improves design/development efficiency.


protocol

Brand Guidelines Overview

BG-1
BG-2
BG-3
BG-4
BG-5
BG-6
BG-7
BG-8
BG-9
BG-10
BG-11
BG-12

Selected Works

Carrot FertilityBranding and Product Design
MiruniStrategy, Branding, Web & Product Design
mmhmmBranding and Marketing Design
Firefox BrowserWeb Design
Sora UnionBranding, Web Design, Illustration & More
BentovilleBranding, Packaging, Marketing & Events
MorDesign Strategy & Branding
WagglDesign Strategist
CreatiumDesign Studio
Flow KanaBranding
Jose HoekPackaging
Digitel AppProduct Design
All TurtlesSr. Design Director
ShopifyUX Design Manager
Mozilla FirefoxHead of Design

heraclio@designstgy.com