Firefox clone
Zen Browser
Best for open-source purists who can live with extension gaps and higher RAM.
Best for: Firefox fans
ZEN VS ARC 2026
Zen Browser vs Arc: Which One Actually Wins in 2026?
Arc changed browsing, but it entered maintenance mode in 2025. Zen Browser copies Arc's layout on Firefox. If you want the same spatial workflow plus AI that actually does work, Tabbit is the free, cross-platform answer.
AI-native workspace browser
macOS & Windows · Free download
30-second verdict
Zen, Arc, or Tabbit?
Frozen in 2025
Arc Browser
Still beautiful, but no new features. The Atlassian acquisition means the roadmap is uncertain.
Best for: nostalgia
AI-native successor
Tabbit
Arc-style workspaces plus Agent Mode, multi-model AI, and Skills. Free for macOS & Windows.
Best for: 2026
Side-by-side
Zen Browser vs Arc vs Tabbit
| Capability | Zen Browser | Arc Browser | Tabbit |
|---|---|---|---|
| Rendering engine | Firefox (Gecko) | Chromium | Chromium |
| Platforms | macOS, Windows, Linux | macOS, Windows, iOS | macOS & Windows |
| AI / Agent mode | None | Arc Max (limited) | Agent Mode with approvals |
| Workspaces / vertical tabs | Yes (Arc-style) | Spaces & pinned tabs | Yes + smart grouping |
| Extension compatibility | Limited (Firefox only) | Chrome extensions | Chrome extensions |
| Built-in automation | No | No | Skills + scripts |
| Pricing | Free / open source | Free | Free |
| Future roadmap | Community-driven | Maintenance mode | Active public beta |
Deep dive
How each browser stacks up
The Firefox remix of Arc
Zen Browser
What Zen gets right — and where it falls short
- ●Copies Arc's vertical sidebar and workspace model on top of Firefox.
- ●Open source and privacy-friendly.
- ●Extension library is much smaller than Chromium; many Chrome/Arc extensions won't port.
- ●Some sites and dev tools still optimize for Chromium, causing breakage.
Design pioneer on ice
Arc Browser
Why Arc stopped being the obvious pick
- ●The Browser Company announced maintenance mode in May 2025 and was acquired by Atlassian in September 2025.
- ●No new features; only security patches remain.
- ●The UI is still beloved, but the roadmap is frozen.
- ●Good if you already rely on it, risky as a new long-term choice.
AI-native workspace browser
Tabbit
What Tabbit adds to the Zen vs Arc debate
- ●Agent Mode lets the browser research, fill forms, and aggregate data while you keep working.
- ●Omnibox with @-mentions pulls in tabs, screenshots, bookmarks, and local files as AI context.
- ●Skills marketplace turns repetitive tasks into reusable one-click playbooks.
- ●Free, works on macOS and Windows, imports from Chrome, Edge, Safari, and Arc.
Why switch
Built for the user who outgrew Zen and Arc
Zen gives you Arc's layout on Firefox, but it doesn't give you AI that executes. Arc gave you a beautiful workspace, but its future is now a question mark.
Tabbit keeps the workspace discipline and adds an intelligence layer that reads pages, runs tasks in isolated tab groups, and asks before it acts on your accounts.
- ●Vertical tabs + project workspaces
- ●Agent Mode with explicit approvals
- ●Omnibox AI with one-click context
- ●Reusable Skills for research and filing
- ●Free for macOS and Windows
What you get
Four things Zen and Arc can't match
Agent Mode that executes
Ask Tabbit to research, compare prices, or file a report. It runs in its own tab group and pauses for approval before touching logged-in sites.
Omnibox with @ context
Type @ to reference the current tab, a tab group, a screenshot, a bookmark, or a local file — no more copy-paste.
Skills marketplace
Save prompts and scripts as reusable Skills, or discover community Skills that automate common workflows.
Workspace-first tabs
Vertical sidebar, smart grouping, and project spaces keep hundreds of tabs scannable without collapse.
FAQ
People also ask about Zen Browser vs Arc
Zen Browser vs Arc: which is better in 2026?+
Zen is the closer visual clone of Arc, but it runs on Firefox and has limited extension support. Arc is more polished, but it entered maintenance mode in 2025 and is no longer adding features. If you want a future-proof workspace browser, Tabbit is the stronger AI-native option.
Can Zen Browser replace Arc?+
For layout and sidebar fans, Zen is the closest replacement. However, if you rely on Chrome extensions, dev tools, or Chromium-only sites, Zen will feel like a compromise.
Is Arc Browser still being updated?+
Arc still receives security patches, but The Browser Company announced maintenance mode in May 2025 and was acquired by Atlassian in September 2025. No major new features are planned.
What makes Tabbit different from Zen and Arc?+
Tabbit is an AI-native browser. It keeps workspace and vertical-tab conventions from Arc, but adds Agent Mode, multi-model AI, an @-context Omnibox, and reusable Skills.
Is Tabbit free?+
Yes. Tabbit is free to download during public beta for macOS and Windows.
Can I import my Arc or Chrome data into Tabbit?+
Yes. Tabbit supports one-click import of bookmarks, history, passwords, cookies, and extensions from Chrome, Edge, Safari, and Arc.
Does Tabbit support Chrome extensions?+
Yes. Tabbit is Chromium-based, so most Chrome extensions and SSO profiles work without reconfiguration.
Which official site should I use to download Tabbit?+
International visitors should use tabbitbrowser.com; mainland China visitors should use tabbit-ai.com.
Stop comparing Zen and Arc. Try the browser built for 2026.
Download Tabbit free, import your data, and run your first agent-assisted workflow with approvals on.