August 20th, 2024

Zen, a Arc-like open-source browser based on the Firefox engine

Zen Browser is a privacy-focused web browser emphasizing user experience, featuring multitasking tools, customizable workspaces, advanced security, and upcoming vertical tabs for better organization and productivity.

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Zen, a Arc-like open-source browser based on the Firefox engine

Zen Browser has been introduced as a privacy-focused web browsing solution that emphasizes user experience and customization. It features a variety of tools designed to enhance productivity, including split views for multitasking, customizable workspaces, and profile switching for managing work and personal browsing. Users can access favorite sites through side web panels without leaving their current page. Zen Browser is engineered for speed, consistently outperforming competitors, and incorporates advanced security technologies to protect user data. The browser also offers a Compact Mode for smaller screens, an intuitive interface, and customizable themes and layouts. Upcoming features include vertical tabs for better organization. Zen Browser aims to provide a unique browsing experience tailored to individual preferences.

- Zen Browser focuses on privacy and user experience.

- Key features include split views, workspaces, and profile switching.

- It is designed for speed and incorporates advanced security measures.

- Customization options include themes, layouts, and keyboard shortcuts.

- Upcoming features will enhance organization with vertical tabs.

AI: What people are saying
The comments on the Zen Browser reveal a mix of opinions and suggestions regarding its features and performance.
  • Many users appreciate the privacy focus and unique features, such as vertical tabs and workspaces, distinguishing it from Chromium-based browsers.
  • Several commenters express concerns about performance claims and the lack of detailed documentation on how these improvements are achieved.
  • Users report issues with installation and compatibility, particularly on macOS and Linux, indicating a need for better support.
  • There is a desire for more customization options and integration of existing features from other browsers, like Firefox and Arc.
  • Some users are skeptical about the necessity of another browser, questioning its value compared to established options like Firefox.
Link Icon 89 comments
By @gxonatano - 8 months
The problems these browsers are trying to solve aren't web browser problems, they're window manager problems. Your web browser shouldn't try to be a window manager.

- If you want to have two web pages side-by-side, you don't need a web browser that can handle split panes. Just have each web page in its own window and use your window manager to put them side-by-side. Tiling window managers will do this automatically.

- If you want to have several web pages open but not visible, so that you can switch between them (i.e., tabs), just use your window manager's tabs, stacks, or workspaces.

- If you have want to have 100 tabs open, you should be using bookmarks or history instead of tabs.

- If you want to have different workspaces, profiles, or so on, use your window manager's workspaces. You can even name workspaces according to projects or tasks, and assign windows to them automatically.

Any modern window manager will do, but ones with automatic tiling are the best. Sway, i3, Monad, Hyprland, Awesome, and Newm are a few.

By @rchaud - 8 months
Very cool project, happy to see a browser that's not a Chromium fork for once.

Some feedback:

- Web Panels: have an option for letting CTRL + Click (or other shortcut) open the link in the Web Panel sidebar. Drag and dropping the link into the sidebar would be a good shortcut as well. This works for use cases like browsing a search results page, and opening multiple links without losing focus on the search results page itself.

- Horizontal Nav Bar: Vivaldi and Arc browser both have no horizontal bar taking up real estate. Maybe this is not possible to replicate with an FF fork, but having sidebar navigation AND a mostly full size top nav bar is redundant.

By @BiteCode_dev - 8 months
I've been wanting split view in FF for a long time, so I'm going to try this right now

And I know somebody, somewhere, is going to argue that it should be the job of the desktop.

I disagree.

I don't want to have to create each context I want things to exist in, and manipulate that carefully.

I like automatic context. That's why I like tabs in my browser and not a thousand windows. And that's why I enjoy my split views to be inside the tabs I just created.

By @explosion-s - 8 months
I've recently made a similar (more modular) project which compiles various features and patches them into a Firefox profile. It can compile themes, hardening, userscripts, userstyles and more into a clean firefox profile, basically removing the bloat from firefox while still being fully customizable: https://github.com/explosion-scratch/firebuilder
By @widdershins - 8 months
Not many straightforwardly positive comments here so far, so I will write one.

I'm a Firefox user but I've recently been tempted by Arc primarily because of its 'workspaces' feature and its minimal UI that gets out the way. I used Arc for several weeks and really got a taste for these features, so I'm really happy to see them come to a Gecko-based browser. Thank you, and keep it up!

My advice would be: don't advertise wooly claims about performance and security, when it's not clear exactly what's different from Firefox there. Instead, focus on this simple fact: it's an alternative UI for Firefox-based browsing, and that's great.

By @bogwog - 8 months
I hope a sustainable Firefox fork emerges soon because it seems Google's illegal default search deals (aka the only thing keeping Mozilla afloat) are coming to an end. That's a great thing in general, but it would really suck if FF died and we all got stuck with Chrome derivatives.

Personally, I wouldn't mind paying for my web browser if it's good. I wouldn't pay for Mozilla's FF, but I would pay for a fork of it by a company whose business model doesn't involve ads or selling data. I happily pay for Kagi, and will happily pay for the app that I use the most.

By @commercialnix - 8 months
I use Sway (an i3 clone for Wayland), so these "split views" and "workspaces" are not appealing to me.

Zen makes serious claims about performance and sandboxing, but do not forwardly present writings on how they do these things, leaving us with the impression there are some tweaks here and there but not much more.

By @chown - 8 months
I've recently started using Arc mostly out of FOMO and there are parts that I like and parts I don't. I have been a Firefox user for a long time before that so glad to see something similar that's one of the major priorities is the aesthetics and I very much appreciate that.

I tried to use it on my macOS Apple Silicone and got an error about it being broken and macOS suggested to trash it. Not sure if it is a bug issue. Will come back and try it again though to give it a second chance :)

By @cynical_slave - 8 months
I want the newest open tab to be at the top of the list, not at the bottom. The top is where your mouse usually is, that's where the website controls are, that's where stuff happens. Having to move the mouse to the bottom to activate recent tabs is annoying, especially on huge monitors.

It baffles me that none of the browsers or extensions that implement sidebar tabs have this option.

By @a2128 - 8 months
It's sad they don't link it clearly but it's available on Flathub if you're on Linux: https://flathub.org/apps/io.github.zen_browser.zen
By @0x2a - 8 months
Looks like it supports Firefox extensions such as uBlock Origin as well. Surprised the website didn't mention it.

Wonder if this still applies:

https://github.com/gorhill/uBlock/wiki/uBlock-Origin-works-b...

By @jszymborski - 8 months
This website mentions LibreWolf which I've recently switched to. It's truly great. Takes care of all the decrapification I do to a fresh FF install while keeping up with the upstream security updates. Feels like how FF should feel imho.
By @tcsenpai - 8 months
I used Arc a lot back when I used MacOS. Was definitely a pleasing experience. I missed it a lot since I switched to Linux/Firefox. I just set up Zen with all my extensions and bookmarks, it behaves very well: let's see if it stands the trial of time, but very nice work. I like the UI
By @willi59549879 - 8 months
I quite like the zen browser. It is privacy focused but also visually appealing. The feature that I like best, is that the browser does not take up a lot of space for itself. Even the top bar can be hidden. That way most of the screen is there to show the website.
By @layer8 - 8 months
Whenever I read “beautiful” in marketing copy, I’m immediately put off. It’s so presumptuous and conveys vanity. Moreover, users may prefer their software to be utilitarian, and in any case are likely to have different opinions on what constitutes “beauty”. For that aspect: Show, don’t tell. If people do find it beautiful, then they don’t need to be told. And if they don’t, then telling them is unlikely to change that.
By @cropcirclbureau - 8 months
I'll say it again, the golden standard for workspaces and sidebars is Sideberry and it's written for Firefox. Always glad to see new browser chrome efforts building on Firefox but it's such a high bar. Will still give this a try though.
By @hysan - 8 months
Seems… quite lacking in details? It makes some pretty bold claims but doesn’t explain how it achieves things like better performance. Their docs are also pretty empty.
By @ZeroGravitas - 8 months
I got a weird error when trying to run the app from within the .DMG on ARM Mac, in case anyone who can look into it is reading.

It said "Zen Browser" is damaged and can't be opened, you should reject the disk image.

edit: it's a known thing to do with Apples security, workarounds in step 3 here:

https://github.com/zen-browser/desktop/issues/53

By @thinker5555 - 8 months
I've seen the "workspaces" thing in a few different browsers now. I know Vivaldi and Arc have them, and it sounds like it's a separate thing from profiles, but I don't quite grok what the difference is between workspaces and profiles. Can anyone help enlighten me? If you use both workspaces and profiles, what do you do differently between them?
By @Hard_Space - 8 months
Does anyone know if Zen identifies itself as 'Firefox' at program-level when running on Windows? This is the biggest mistake that FF forks and offshoots make, since it makes it impossible to run Firefox and the derivative work at the same time.
By @forthwall - 8 months
I'm really enjoying the experience of Zen. I appreciate a ~modernish~ style and UX paradigm on a browser that isn't chrome based. Keep it up!
By @dartharva - 8 months
I don't know why but websites always feel downgraded with Firefox and its descendants. Long load times, incomplete/failed loads, bad font rendering, buffering.. It feels evident that webmasters only care for compatibility with Chrome et al.

It felt that it was subsiding in between, but sites have again started breaking on it nowadays.

By @yellowapple - 8 months
Looks nice. I like that it defaults to vertical tabs, but I don't like the inability to give them any sort of hierarchy, be it a full-blown tree like Tree Style Tabs or with tab groups like Edge.

Since it's just a Firefox reskin, I was able to login with my Mozilla account and sync my extensions, Tree Style Tabs included. Enabling Zen's "compact mode" turns it into a pretty ideal setup for TST, since the default tab list disappears entirely. Still would be nice to not need TST in the first place.

Workspaces seem like a nice idea in theory, though currently underbaked in practice. Deleting a workspace appears to be bugged at the moment; attempting to do so just switches to the workspace instead of deleting it. It'd be great if they could integrate with Containers; I'd love to be able to e.g. set a default container for a given workspace (and then all tabs in that workspace would default to that particular container).

The Zen Sidebar is pretty cool; I can see myself using the premade Wikipedia and Google Translate panels quite a bit, in addition to setting up some of my own. Resizing the Sidebar is pretty finicky, unfortunately; dragging the edge will often fail and cause the Sidebar's size to snap to a tiny width.

Zen seems to have a built-in profile switcher, which is interesting, but seems redundant with Containers and way more limited. I also don't know why it defaulted to creating both "Default (alpha)" and "Default Profile" profiles, nor do I know why it set "Default (alpha)" as the default. I assume because this is an alpha release?

I don't know if Zen changes enough for me to prefer using it over normal Firefox (especially with Firefox's own vertical tab and sidebar improvements on the horizon), but I appreciate that this exists and look forward to seeing where it goes.

By @wpwpwpw - 8 months
Thank you for your work! I believe it's not ready for daily driving, but I was happy to try it out and, maybe, to check again later so it replaces firefox. Loved all the new features and look and feel. However, there are some quirks I'll describe here, maybe they'll be useful. The sidebar is missing some hover popups so one can know what the buttons mean; animations, in general, are not very good, making the interface look rough; some parts of the regular firefox interface are just "glued in", and they feel a bit alien / missing integration (bookmarks, history...); tab bar at right side not working, although there is a button for it (useful for wide monitors in which you pin the window to the right side). Keep going!
By @antran22 - 8 months
I checked this out and I gotta say it is still in a very early stage. The features they are presenting seem nice, but not very usable, with a lot of rough edges.

Then I found this issue, where essentially they left a huge backdoor open with Remote Debugger: https://github.com/zen-browser/desktop/pull/927. The guy claims that it was due to ignorance, but seeing this really shakes up my paranoia. Luckily I haven't typed any credential into the app. From a security-minded user's perspective, this is not a good sign. I hope that they would really put privacy & security forward, get some 3rd party security audits.

By @groove9373 - 7 months
I noticed that the Firefox Multi-Account Containers addon isn't working for me on Zen browser. I'm using it via Flatpak. Does anyone else have this issue?
By @gsimons88 - 8 months
Does anybody have insight into how this compares to Brave? In their own comparison Brave is not even considerd.
By @brianzelip - 8 months
Finally something not chromium!
By @niks1 - 8 months
I have a few questions I would be very interested to hear the answers 1 When is the earliest we can try tab grouping in Firefox Nightly? 2 Will the following things be available, the ability to group by dragging and dropping a tab, the ability to name and change the name, assign a color, and pin and hide a tab group, and the option to sleep tabs in groups? 3 Is the Workspaces feature being considered, it is quite popular and has been implemented in Floorp and Zen? 4 Is tab grouping also considered for the Android version of Firefox? 5 Are there any plans for a Portable version with a built-in dark theme for websites? Thank you very much! We are very sad that many features have been removed, tab grouping, pwa, rss, compact mode, menu icons, etc., hopefully this will all be coming to Firefox and such mistakes will not be made again.
By @eddyg - 8 months
The most game-changing thing for me about Arc has been Air Traffic Control. I have spaces set up my various web-based apps, and previously they would be scattered among my dozens of browser windows. Now, the tabs of each web app are beautifully contained in their own spaces, thanks to ATC.

Any idea if Zen supports this? And ctrl-tab for quickly cycling between recent tabs (even across Spaces)?

By @niks1 - 8 months
I have a few questions I would be very interested to hear the answers

1 When is the earliest we can try tab grouping in Firefox Nightly? 2 Will the following things be available, the ability to group by dragging and dropping a tab, the ability to name and change the name, assign a color, and pin and hide a tab group, and the option to sleep tabs in groups? 3 Is the Workspaces feature being considered, it is quite popular and has been implemented in Floorp and Zen? 4 Is tab grouping also considered for the Android version of Firefox? 5 Are there any plans for a Portable version with a built-in dark theme for websites? Thank you very much! We are very sad that many features have been removed, tab grouping, pwa, rss, compact mode, menu icons, etc., hopefully this will all be coming to Firefox and such mistakes will not be made again.

By @ilrwbwrkhv - 8 months
https://old.reddit.com/r/firefox/comments/1bsm9lu/im_doing_a...

Reddit launch of the project about 4 months ago.

Fantastic project and already very polished browser. Really enjoying it!

By @gpm - 8 months
femou are you the author?

https://github.com/zen-browser/desktop/tree/main/src/browser... has a submodule pointing to https://github.com/zen-browser/components/tree/dab7fd0b2fbf2... which isn't public... I assume that's an oversight.

By @bityard - 8 months
Seems like the features they promote on the marketing page are ones that Vivaldi has had for quite some time. I'll probably give it a try but when I gave up on Firefox, one of the main reasons was that many of the sites I visit aren't tested on Firefox due to the low market share and are broken in subtle ways.
By @remedan - 8 months
I really like the UI! I use Firefox with Sidebery and the top tab bar hidden via userChrome.css, which is kind of a hassle. Zen supports that kind of layout out of the box.

I'm very happy to see a new modern browser not based on Chromium. Will definitely test drive it to see if it's worth switching to.

By @bionsystem - 8 months
All of those are features I love in Vivaldi. If it matures it will be a very welcome open source replacement.
By @jeremiahlee - 8 months
Website getting hugged to death for a second day. Direct link to downloads from the GitHub releases: https://github.com/zen-browser/desktop/releases
By @desipenguin - 8 months
Does Zen have (or plan to build) Auto Archive feature like Arc ? https://resources.arc.net/hc/en-us/articles/19228855311127-A...

I couldn't find any Firefox extension that does this (Or maybe I didn't look hard enough)

This is the one feature that brought me to Arc

(I've since stopped using Arc, and moved to Vivaldi. My "main" browser is still Firefox)

By @pshirshov - 8 months
Really cool but so far noone was able to package it for NixOS: https://github.com/NixOS/nixpkgs/issues/327982
By @anjel - 8 months
Was really looking forward to trying this browser out. But the windows installer fails VirusTotal scan by 4 separate scanners. Its usually a false positive, but its not the environment to giving the benefit of the doubt for. This happens more and more often for me, and I'm surprised software development skips the stage of addressing this prior to app launch and promotion.
By @redkoala - 8 months
Vertical tabs and privacy focused implementation gives me a good combination between the Arc browsing experience and the privacy protections that Mullvad browser (or private mode Firefox) deliver.
By @Alifatisk - 8 months
First we got Floorp, now we got Zen. Love it! I hope they make it available through Chocolatey and Homebrew like Floorp.

I really like that Zen offers two options, a setup wizard and a portable binary.

By @shafyy - 8 months
Looks promising. How do you plan on being financially sustainable?
By @bpbp-mango - 8 months
Split tab is cool. Couldn't import data from firefox. Quite slow to launch. Profiles are buggy, the name gets lost and it keeps launching the welcome wizard.

looking forward to seeing this mature

By @dev213 - 8 months
(now ex-) Firefox user here. I think I am in love with this browser.

I tried switching to arc, but it didn't stick since I really got used to the Firefox way of life. The arc browser also felt really commercial and has a lot of gimmicky AI features, which is not optimal.

This Zen browser is like a blend of the best of both worlds!

By @mkbkn - 8 months
On Linux Mint 21.1 Mate, I was not able to launch or use the Appimage file. Then I installed the flatpak version and it worked. Though I prefer the former.

Anyway, it looks good on the first try. Will give it a good try for a month or so before committing to it.

Does it have "profiles" feature like Vivaldi?

By @maelito - 8 months
Firefox's container addon is one of the features that make me love firefox. But they could be integrated better.

I'll try Zen.

By @Mashimo - 8 months
> Optimized for peak performance

What does that even mean?

By @gukkey - 8 months
I have been looking for an alternative for Arc for some time and this seems promising. Doesn't have folders and peek for now, but excited to see how it's going to evolve. Atleast this project isn't just firefox slapped with a wannabe arc theme.
By @anon23432343 - 8 months
One thing almost all arc clones dont get right and I talked with other arc users about this is that arc when surfing has no ui besides the border no top bar not tabs you can hide everything if you want to.

I downloaded Zen and what do i see a top bar which I can not hide or at least I can not find how to do it.

By @braggerxyz - 8 months
Hmm, doesn't appeal to me. There is nothing over stock FF which I would consider important for me.
By @mrweasel - 8 months
Someone pointed out to me that you can set eBay as the default search engine. That seems like a weird option. There can't be many that primarily uses their browser to access eBay, though I wouldn't rule out that people with this preference exists.
By @jedisct1 - 8 months
Do people really care about the engine being used under the hood?

From a user perspective, I see no difference between Blink, Webkit and Gecko. And when there is, it's a website that has only been tested on Blink, or uses features not available elsewhere.

By @Saris - 8 months
I'm getting a 403 forbidden error from Vercel while using Firefox to try and look at a Firefox fork lol.
By @findthewords - 8 months
I have a suggestion: use the existing tabs sidepanel to display "bookmarks" and "history" in it, for a consistent experience, instead of two different kinds of pop up panels.
By @lovestaco - 8 months
Good software.

One more smart thing to do would be to open different workspace by middle click on the workspace name or giving options to open from the list.

By @grumblepeet - 8 months
Sadly didnt run for me on Windows on this Arm laptop although in mitigation I didnt try that hard & was in a hurry. I might have another look at it later. Uninstalled for now.
By @tamimio - 8 months
I will give it a try. Firefox has recently not been the best, especially in private browsing mode. Opening less than 15 tabs there, and it’s already using 25 GiB of RAM!
By @ertucetin - 8 months
Why are there so many new browsers these days? Is there really that much demand for them? Considering that creating one is very hard and requires a team.
By @chrisabrams - 8 months
I tried downloading this for MacOS Silicon and was told the dmg was damaged :/ Guess I'll wait a little bit for things to iron out.
By @giancarlostoro - 8 months
I have been using Firefox since after 2004 (I'm not sure if it was 2005 or 2006) and while I love the browser, I wish they would invest moreso in just making it less cluttered. One of the first things I do when I install Firefox is get rid of the stupid gaps next to the URL bar. Every. single. time. It really angers me. Who wanted that? Do people leave it on because they can't figure out how to remove them?

We had a browser aiming towards being a full on Rust application, and I was excited and cheering that on, not because it was Rust, but because the focus by shifting to Rust was security and speed. Now I'm not sure the focus.

I like how sleek this browser looks, and the "themes" seem to target very specific needs of minimalizing the UI which I also appreciate. I'll have to pull this one down for my Linux box to try it out.

By @vfclists - 8 months
Is it based on the GeckoView engine for Android which is never going to be ported to Windows?
By @keen99 - 8 months
ah a cute but soon-to-be-dead project, since they apparently are intentionally breaking the macos experience. either support your users or remove support for your users - shipping them an intentionally broken experience is a bad move.
By @raghavbali - 8 months
the browser wars are heating up again! nice
By @sweeter - 8 months
You had me at tab groups. It is baffling that Firefox has refused to do anything sane about tab groups.
By @sirodoht - 8 months
macOS says "“Zen Browser.app” is damaged and can’t be opened. You should move it to the Bin." :(
By @anotheryou - 8 months
Any difference besides the UI to using sideberry with containers?

E.g. seperated history suggestions or something?

By @ebri - 8 months
I'll take qutebrowser any day. Best damn thing I've learned to use since (n)vim.
By @qurashee - 8 months
"The only limit is your imagination" is a direct reference to zombo.com for me
By @lagniappe - 8 months
“Zen Browser.app” is damaged and can’t be opened. You should eject the disk image.

Current MacOS on M2

By @imagetic - 8 months
My download was corrupt and macOS threw it in the trash. That's a first.
By @deagle50 - 8 months
I've wanted a split view in Firefox forever. Thank you!
By @jdeaton - 8 months
The macos disk images are "broken" according to my os.
By @owjofwjeofm - 8 months
to me the main feature that makes arc browser appealing is how they combine the features of open tabs and bookmarks into one intuitive system, and making switching an open tab into a tab in the saved section really frictionless, and allowing you to view a tab in the same section in the same manner as an open tab. It also then automatically takes care of the memory management aspect of closing unused tabs for you while keeping the visual representation of open/saved tabs the same, and letting you be confident that the state of the saved tabs section is persisted.

No browser that I've seen comparing itself to arc really does this. I downloaded zen and looked at it for like 30 seconds and it doesn't look like it does this either.

By @nxtcoder17 - 8 months
how is it different than [floorp](https://floorp.app/en) ?
By @mazugrin2 - 8 months
femou, are you affiliated with Zen? Do you know if there are any plans to add support for ARM users running Windows or Linux?
By @upcoming-sesame - 8 months
Images on the landing page look very pixelated
By @NayamAmarshe - 8 months
The website design is really cool! I love it!
By @causality0 - 8 months
Someone want to explain what "based on the Firefox engine" means? Is it a fork of Firefox or do they think I'm too stupid to know what Gecko is?
By @lordofgibbons - 8 months
I'm very interested! Before I adopt, could you please share what's your business model?
By @account42 - 8 months
What is it with modern software and ungoogleable names. Make up something unique instead of just using short english words FFS.
By @eitland - 8 months
Does this thing have nested tabs (like TST or Sideberry) or is this another one that didn't realize that saving vertical space, while useful, is less than half the point of vertical tabs?
By @riperoni - 8 months
Firefox with some extras might he nice, but the structure of that web page raises the question:

Who is the target audience? That website has so many oversimplified marketing claims that are about security and customization. It seems wholly undecided if the target audience is people who fall for buzz words or someone actually interested in quantitative improvements over Firefox.

And yet the comparison is just checkboxes and not even including base Firefox. How about bar graphs for comparison and some actual pictures of the advertised customization, layout and workspaces?

To me this still feels a little shady, even though the features seem nice.

By @ramon156 - 8 months
While I don't condone complaining for the sake of complaining, I really don't see why I would use this. Every argument feels very "floatey".

When I think of browser devs, I don't think about fancy UI, and blazingly fast speeds! I think about engineers who know what they're talking about.

I've never heard of floorp, and the arguments against librewolf are silly. On top of that, some of these "features" like themes, profile switching are already in FireFox. So again, why would I choose Zen?

I don't see how this project adds any value to the very mature FF, it's just piggybacking imo.

By @ammar-DLL - 8 months
i wish if this made in gtk4 or qt6
By @benreesman - 8 months
We don’t need those investors: https://youtu.be/kKAue9DiHc0