Tab Behavior Analysis
Lumen Research
Insight 03
Tabs don’t get closed —
they’re forgotten.
Tab state after 7 days · n = 12,400 sessions
0%
10%
20%
30%
23%
Active Use
14%
Bookmarked
31%
Closed
32%
Forgotten
Largest segment
This is the
Zen Browser
design system, applied by
Curio Design
— a design-style library for AI agents. Full Zen Browser guide →
designbycurio.com/learn/zen-browser-clean-2024