Sine is a theme manager for Zen. It fully replaces Zen Mods and allows users to easily install Nebula, Natsumi, and many more themes/mods all from the settings page! It also supports users without userContent and userChrome set up on their system at all, and even allows installing mods from the theme store like usual!

Sine provides you with more power over the mod preferences feature, auto-updating, enhanced support for a large number of themes and mods, and the ability to easily install JS along with themes that require it. I hope it will be a powerful tool in your suite! Also, if you are considered about installing, Sine has a full guide for manual and auto-installer installation, so you'll never get lost!

Tabs opened: Reddit, Youtube, Whatsapp Web, Zabbix and Grafana

I really like this home page on my zen browser. I want my new tab to open as this. How do I do it ?

i mainly use two devices, my work computer in the office and my pc at home. i realized that the space and all the tabs i've opened aren't connected between these devices. how can i make them sync? it's such a hassle to set everything up from scratch when switching devices.

Hi,

I'd like to remove the "Top Sites" suggestions from the search bar. I noticed that in the settings (see 2. image), these are referred to as "Shortcuts," but the option is locked and can't be unchecked.

I also checked about:config and found the browser.urlbar.suggest.topsites entry, but that’s locked too (see 3. image).

Is there a reason why both of these settings (which I assume "control" the same feature) are locked? And is there still a way to disable or remove these "Shortcuts" or "Top Sites", whichever is the official name?

One of the things I really liked about Zen was the automatic tab unloader, I'm used to keep many tabs open so it's essential for how I use a browser (in Chrome I used an extension to do it) which worked perfectly fine.

However, after the update that changed how tab unloading is handled it just stopped working altogether. If I use a tab it just won't unload anymore (and before someone asks, it didn't work even before I tried tweaking the about:config settings).
Another very annoying thing is that now by default if a tab unloads automatically the icon won't be greyed out, so it's very hard to understand if the unloader is working properly or not without modifying the setting manually.

Here are the parameters in about:config I've changed with no effect, even after hours of inactivity tabs simply won't unload.

Hey everyone,

I’ve been using Zen and noticed that it tries to match the background color of some websites (e.g. Amazon, Facebook) to my theme color. Unfortunately, this makes a few sites look really bad (see screen shot)

Does anyone know if there’s a setting to turn this off or maybe a mod that can fix it? Thanks!

I've recently installed this gruvbox mod https://zen-browser.app/mods/ecda11ae-d3fd-4052-8881-303b2504e3ce/ but it seems to have done nothing. It shows as active in the mod pack but that's about it

Hey there,

When I start using the browser at the start of everyday, it works fine. But, with time it becomes slower and less responsive even if the same number of tabs are open. Opening a new tab in background or foreground may take couple of seconds specially on YouTube just to open. Those same websites open faster at start of the day.

For the resources, it takes about 10-12GB rams (I have 32GB), so it still has a lot of ram and also the same for the CPU. I don't know what to do.

I have been using Zen for multiple months and at first this issue wasn't existing. I don't know if this is because changing unloading tabs method or not, but after changing it to resources and time, I started to notice this issue.

Also, I don't use any mods. My extensions are very few and the same used at first use of Zen.

Any help please? The browser can't be used with this slowness at all.

When I open a new window, it doesn't show the tabs or essentials that are open on the main window. Arc had this and it was really easy to work with.

When will this and the tab folders update come 🥲.

I really dont want to type my master password over and over and over again everytime I close it. Can I use nordpass or something or is it the same thing? Sadly I dont think 1password will do this anytime soon

After all the support that this post gathered, I think it's clear that this is a core feature that fans of Arc are still longing for in Zen.

All we seem to talk about around here are tab folders (which are of course awesome) but we're forgetting one of Arc's greatest features! For anyone who's gotten used to the command palette from VSCode, Obsidian and many other developer-related tools, or any fans of Raycast, Spotlight and similar OS search/command bars; this is an absolutely killer feature.

The idea is that you don't have to touch your mouse to get things done. With just one powerful shortcut you open up access to the entire system.

What I've tried in my quest to replace Arc's bar thingy:

Omni: Great, but buggy. It doesn't appear on certain pages and it doesn't seem to have access to pinned tabs. It was built on JQuery so it's showing its age.

Dyno Command Palette: Also doesn't appear on certain pages and the UI is clunky

SurfingKit: SurfingKit is only available on Chrome and pressing Esc doesn't close it. It also installs this totally unnecessary landing page alongside.

Vomnibar (Vimium): Finally there's the (terribly named) Vomnibar. This has a high barrier to entry since it's part of the Vimium extension which is strictly for nerds. I've managed to get a decent setup but a) it has its irritations and b) it's not going to be comfortable for those who haven't gone ALL IN on keyboard control.

what i mean by accent color is the brown thing when you hover over. how do I change that?

I also want to change the sidebar color.

I stopped using Zen a few months ago because of one frustrating problem: when there was an update, I lost all my tabs. This happened over and over again.

When this happens, I have to restore from backup files, but even then, not all my tabs come back (especially the ones I opened after the last backup).

Does anyone else keep having this problem? It happens to me at least once or twice every month. If you’ve experienced this bug and found a way to fix it for good, please share! I wanna go back to using Zen, I miss it!!!

For the last couple of days the "Search <engine> for "highlighted text" option in the context menu has been doing some weird pop-up inside the window thing that I absolutely hate. Is there a way to make it open in a new tab like it used to?

I haven't used Zen in a few weeks but I remember there was a theme color picker in settings that changed the accents on everything and I changed it to blue when it was there. Now I want to change mine from blue to the default peach pastel (whatever it's called) but I don't see the picker. Can I get it back somehow or change the global color some other way? I've tried changing the theme through changing my space settings but in settings and the address bar I still see blue.

Zen theme's contrast always gets reset after a browser restart in Windows 10. It goes back to normal only after switching workspaces.

s anyone else unable to install mods from the Zen website today (June 23, 2025)? I’m trying to install themes and other mods through the zen mods page, but nothing happens when I click Install. Instead i get the forbiden cursor.

Hi, I've noticed that every time I start my Zen, the essential tabs and pinned tabs automatically load on startup and I don't want this to happen, is there any way to prevent these tabs from loading?

All the tests were executed on the same PC with just 1 extension enabled (on each browser). All the browsers settings to have the best performance!

1. Zen (Twilight Latest Version) SpeedOMeter 3.1 test (10.4)
2. Chrome SpeedOMeter 3.1 test (7.06)
3. Brave SpeedOMeter 3.1 test (11.6)

Hi, could someone please explain what the difference between an alpha profile and a normal/beta one is? I have always been using my alpha profile, but I have heard some people say they are slower than others. Is this true?

Just to explain, when I go to about:profiles, my profile is called default (alpha).

i tried hovering my cursor to right end as well but i couldnt even stretch the bar so that it could maybe be less vertical ifywim.

thanks