Zen, at least from the few times that I’ve tried it, also has some major issues that I personally find to be deal-breakers. Like forgetting tabs in a window that has just been closed. If you accidentally close a window that you’re working, without quitting the browser, you lose everything in it. As someone who is prone to doing that when closing a tab, it’s not ideal.
No but where are you going to go. The options are shrinking.
Fennec on mobile. LibreWolf on desktop.
Waterfox works great on Android.
Iron fox is another option.
Zen browser is great on desktop
Zen, at least from the few times that I’ve tried it, also has some major issues that I personally find to be deal-breakers. Like forgetting tabs in a window that has just been closed. If you accidentally close a window that you’re working, without quitting the browser, you lose everything in it. As someone who is prone to doing that when closing a tab, it’s not ideal.