Qolor: Dynamic Theme Engine by Raphael Quintão
Generate full Firefox themes from one or two colors. OKLCH color engine for perfect look and feel.
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About this extension
Qolor is a modern design engine that generates high-quality, comprehensive Firefox themes using just one or two base colors.
By leveraging the cutting-edge OKLCH color space, Qolor ensures your browser doesn’t just look good—it feels perceptually perfect.
Why Qolor?
By leveraging the cutting-edge OKLCH color space, Qolor ensures your browser doesn’t just look good—it feels perceptually perfect.
Why Qolor?
- Total UI Coverage: Most tools only change the toolbar. Qolor styles everything—popups, sidebars, menus, and interactive button states—for a truly seamless look.
- Perceptual OKLCH Engine: Experience mathematically perfect color harmony. Unlike traditional HEX or RGB, our OKLCH model ensures consistent brightness and saturation across your entire theme.
- Guaranteed Readability: Our real-time luminance engine automatically "nudges" shades to maintain perfect contrast, ensuring your text always meets accessibility standards without you lifting a finger.
- Intelligent Adaptation: Qolor doesn't just swap colors; it intelligently calculates shadows, highlights, and transparency to create a cohesive, modern UI.
- Redesigned Scheme Management: Organize your favorite looks with our new "Card" system. Clone, edit, and swap palettes instantly without visual clutter.
- Always With You: Full integration with Firefox Sync means your custom themes follow you across every device automatically.
Rated 4.5 by 10 reviewers
Permissions and data
Required permissions:
- Read and modify browser settings
- Monitor extension usage and manage themes
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Version
- 2.0
- Size
- 5 MB
- Last updated
- 4 days ago (Apr 7, 2026)
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