Reynisfjara Theme for Firefox

Inspired by the dramatic and windswept shores of Reynisfjara, this dark theme blends deep charcoal surfaces with cool steel-blue tones and subtle icy highlights. The layered contrast between shadowy backgrounds and soft gray-blue accents creates a calm yet striking visual balance, offering a focused and immersive coding environment.

A dark theme from the Codigrate Nature collection, released 2026-03-05. Tags: Nordic, Muted, Cinematic.

Sold on codigrate.com for .99, one payment, tax included: add it to your cart, pay with Stripe (cards, Apple Pay, Google Pay), and download the theme right away. No account needed. Personal licence; a digital download, so all sales are final (see the terms of sale).

Getting started on Firefox

1. Open the theme's Firefox Add-ons page with the Go to store button.
2. Click Add to Firefox and confirm in the prompt that opens.
3. The theme applies at once: the tabs, the toolbar and the address bar take its colors, no restart.
4. Want another look later? Open Add-ons and themes ( Cmd+Shift+A on a Mac, Ctrl+Shift+A on Windows and Linux ) → Themes and enable another theme; switch back the same way any time.

Reynisfjara color palette

• #2A3138
• #7D848D
• #8E8276
• #AC8563
• #B1AC9B

Every named color of the Reynisfjara palette, free to download for MacOS, CorelDRAW and Figma.

Reynisfjara on every platform

• Reynisfjara for JetBrains
• Reynisfjara for Xcode ($2.99)
• Reynisfjara for Zed (.99)
• Reynisfjara for Firefox (.99), this page
• Reynisfjara for Sublime Text (.99)
• Reynisfjara for MacOS Terminal (.99)
• Reynisfjara for iTerm2 (.99)
• Reynisfjara for Ghostty (.99)
• Reynisfjara for Rhino (.99)
• Reynisfjara for Slack ($0.99)
• Reynisfjara for Line

From the blog

• Anatomy of a Dark Theme: Reynisfjara: Anatomy of Reynisfjara, a dark IDE theme: black sand and basalt greys for the frame, washed timber keywords and sea foam values, quiet as a beach at dusk.