Zen Browser 1.24.2b Ships as Its Most Polished Release Yet, Still Wearing Beta Branding
Zen's newest patch folds in Mozilla security fixes and a batch of quality-of-life touches, then lands right in the middle of its own long-running "when do we finally get stable?" debate.
Zen Browser just shipped 1.24.2b, running on the Firefox 159.0.1 engine that the current "1.24" line is built on. On paper it's a routine patch: security updates in, a handful of conveniences added, a few bugs squashed.
But one detail keeps showing up in the comments, and it's worth addressing directly.
What ships in 1.24.2b
Past the security baseline, MFSA 2026-125, standard for the Firefox 159.0.1 line, the patch packs a fair number of new features.
The downloads menu gets a pause button you can hit right from there. The address bar picks up a semi-transparent look "for a more modern look." Picture-in-Picture gains playback speed control from 0.25x to 2.0x, visible only when the PiP window is medium-sized or bigger. Math-heavy PDFs now expose MathML to screen readers. Sites that keep nagging you to open mailto: links can finally be blocked, with the block list living in Settings.
The fixes carry the most detail. There's the classic annoyance where the first character you type in the address bar gets swallowed when you type fast right after clicking in, now fixed. Multi-second freezes signing into intranet sites over NTLM or Kerberos auth are gone. Word selection and cursor placement near the caret got sorted, along with macOS problems where background links from other apps would yank Zen to the foreground.
Keep in mind that the timing is arguably the most quotable part of this release.
Zen 1.24.2b lands at a great moment for a reason: its closest competitor is being shut down. The Browser Company announced it's ending Arc on December 22, 2026. New accounts already stopped opening, and the macOS and Windows builds stop working entirely on that date. Accounts get deactivated and data deleted within about 30 days, with the company doubling down on Dia, its AI-first browser.
Zen is pitched as the natural exit for people who liked Arc's tab-centric layout but didn't want to hand their data to a proprietary successor. The 1.24b update already added direct import of Spaces and Profiles from Arc and Dia. It runs on Gecko, ships under the Mozilla Public License 2.0, and takes standard Firefox add-ons. The Arc-to-Zen drift has drawn coverage from ZDNet, The Register, and XDA.
Download numbers back that up loosely. Windows stays the dominant platform every time. This latest installer pulled roughly 437 downloads in its first hours on Windows, about 252 on the macOS DMG, and 114 on the Linux tarball. The delta updates dwarf the fresh installs, about 7,835 on Windows, 4,378 on macOS, 1,395 on Linux.
Compare against 1.24.1b from November 5, which saw 43,739 Windows installs and 234,101 delta updates, or the 1.24b feature release that topped 58,000 Windows downloads. The point release is modest by comparison, which is normal.
The usual caveats still stand. Zen ships without Google code, so uBlock Origin runs unrestricted, a genuine privacy win, but there's also no licensed Widevine module. Netflix, Disney+, Prime Video, and Apple Music stay blocked on Windows and macOS. Reviewers keep calling this the browser's only real downside. There are no mobile versions planned either, since the small team wants to keep Zen desktop-only.
Community reaction fits the familiar arc. Power users report 50 to 100 open tabs with rare crashes despite the beta tag. But some argue there's "no need to remove the beta label at this very moment," since lingering edge cases may still exist. The beta framing is as much a quality signal as a liability.
Bottom line: 1.24.2b is Zen's most polished build yet, still wearing beta branding by design rather than mistake. It behaves like a production release, but the team hasn't dropped the "b" convention or called an official stable launch. That "when do we get stable?" question stays open.
Head here to grab Zen Browser 1.24.2b from the GitHub release page or the Flatpak mirror, and check the full changelog.
