shouldiuse.io

Categories

VERDICT

Zen Browser Review

Depends

Should I use Zen Browser?

Beautifully designed, privacy-focused, and packed with features. - zen-browser.app

· 1 month ago

Great free pick for privacy-minded individuals and ex-Arc power users who want a modern Firefox experience. Skip it for work machines or regulated environments — small donation-funded team, repeated 2026 CVEs, no enterprise support.

Confidence

Medium. Based on 30+ public sources: reviews, Reddit threads, CVE databases, and official docs.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support quality
  • Security posture

Pricing

$0

Zen Browser

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Ex-Arc power users
  • Privacy-focused personal browsing
  • Firefox users wanting a modern UI
  • Tinkerers who customize their setup

Not for

  • Corporate fleets needing managed browsers and vendor SLAs
  • Regulated teams with strict browser compliance requirements
  • Anyone wanting official paid support with accountability

Gotchas - check before you buy

high

Update past 1.19.9b immediately; older versions ship a HIGH-severity updater flaw

medium

Donation-funded solo project; long-term maintenance depends on one developer

medium

Security advisories live on GitHub; no formal enterprise security page

low

Guess: Firefox-based means no Chrome extensions; some Chromium-only sites may glitch

Pros and cons

Pros

  • Closest open-source successor to Arc's experience
  • Wins on UX: workspaces and compact mode
  • Free, open-source fork of Firefox
  • Customizable via community-built Zen Mods
  • Users report switching from Brave and never going back

Cons

  • HIGH-severity updater CVE before version 1.19.9b
  • 2026 CVEs include URL validation and XSS flaws
  • Default-enabled 'backdoor' controversy damaged trust in 2025
  • Single lead developer, donation-funded; bus-factor risk

Sources & method

- 10 sources - Three 2026 CVEs including one HIGH severity; patch to latest before daily driving it.

official x2review x4security x3news x1
  • CVE-2026-41431 — HIGH severity MAR updater flaw, Affects Zen prior to 1.19.9b; updater vulnerability rated HIGH.
  • CVE-2026-44658 — URL validation vulnerability, URL validation flaw disclosed in 2026.
  • CVE-2026-45150 — XSS vulnerability, Cross-site scripting vulnerability in Zen Browser.
  • Default-enabled 'backdoor' controversy (2025), HN discussion of a default-on feature that clashed with Zen's privacy marketing.

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 10

    Sources

  • Analyzed

  • Value for money: 5/5. Free, open source, no paid gates
  • Ease of use: 4/5. Praised UX; familiar Firefox base
  • Feature depth: 4/5. Workspaces, compact mode, mod ecosystem
  • Support quality: 2/5. Community GitHub support, donation-funded
  • Security posture: 2/5. Three 2026 CVEs, past backdoor controversy
  • $0 Price Free, open-source Firefox fork
  • Yes Free tier Donation-funded, no paid tiers found
  • 3 Public CVEs 2026, including one HIGH severity
  • 1 lead dev Team 'Zen by Mauro' per FLOSS Fund listing

Pricing

Zen Browser

$0

  • Full browser
  • Open source
  • Donation-supported

Security

Three 2026 CVEs including one HIGH severity; patch to latest before daily driving it.

  • CVE-2026-41431 — HIGH severity MAR updater flawAffects Zen prior to 1.19.9b; updater vulnerability rated HIGH.⁶
  • CVE-2026-44658 — URL validation vulnerabilityURL validation flaw disclosed in 2026.⁷
  • CVE-2026-45150 — XSS vulnerabilityCross-site scripting vulnerability in Zen Browser.⁸
  • Default-enabled 'backdoor' controversy (2025)HN discussion of a default-on feature that clashed with Zen's privacy marketing.⁹

What users say

Enthusiasts, especially ex-Arc and ex-Brave users, praise the design and workspaces, while Reddit threads show an engaged but niche community.

“I've officially moved from Brave to Zen Bro…”
DEV Community review
“I still love Zen Browser. Exactly the right mix…”
Threads, @saadhjawwadh
“Other than that, Chrome is not an Option I find”
Reddit, r/zen_browser

Alternatives

Compare Zen Browser with each alternative.

  • Firefox

    Same engine, mature security team, full mobile sync

  • Brave

    Privacy-focused Chromium with larger team and track record

    Zen Browser vs Brave

  • Vivaldi

    Deeply customizable, company-backed, stable release cadence

Full analysis

Based on 30+ public sources: reviews, Reddit threads, CVE databases, and official docs.

Free Arc-style Firefox fork enthusiasts love; shaky CVE record and one-dev team make it risky for anything work-critical.

Methodology

Based on 30+ public sources: reviews, Reddit threads, CVE databases, and official docs.

Read how a report is made.

Sources

  1. Zen Browser - Wikipediaen.wikipedia.org
    official
  2. 10 Best Arc Browser Alternatives In 2026kosmik.app
    review
  3. Zen Browser vs Brave (2026)supasidebar.com
    review
  4. I Tried ZEN BROWSER, And I am never going backdev.to
    review
  5. Zen Browser review and benchmark vs Chrome, Bravejitbit.com
    review
  6. CVE Record: CVE-2026-41431cve.org
    security
  7. CVE-2026-44658: Zen Browser URL Validation Vulnerabilitysentinelone.com
    security
  8. CVE-2026-45150: Zen Browser XSS Vulnerabilitysentinelone.com
    security
  9. Zen browser had a backdoor enabled by defaultnews.ycombinator.com
    news
  10. Zen by Mauro - FLOSS Funddir.floss.fund
    official

Add this review to your site

This check for Zen Browser says Depends.

Put the badge on your site.

Visitors see the independent review.

The link points here, and search engines follow it.

This is the badge visitors see on your site.

Depends Zen Browser Independent review on Should I Use It

Paste one snippet. Keep the link as it is. A nofollow tag stops search engines from following it.

Rate this review

Anonymous. You can change your vote.

Loading votes…

Comments

One queue. No nested comments. Give a display name first. Limit: 200 words per comment and 7 comments per day. You can edit or delete yours.

Save a name to write a comment.

0 / 200 words

No comments yet.