Nowadays most websites leaves half of your horizontal space empty on high resolution monitors, so you have a lot of unused real estate. Verticals tabs can also fit in more tabs while showing tab title and can implement features like collapsible tabs.
I do, I have a 2K display with lots of horizontal space. Vertical tabs allow me to better group and see tab names in vertical space rather than trying to line up truncated tab names on a horizontal axis.
Rather than replace, I'd guess it could be an alternative. The best part of it will be the ability to natively disable the top tab bar instead of needing a janky userchrome css hack that doesn't even fully work.
Additional features include AI chatbot integration
That's why I was against the AI integration for the image text-summary in the PDF. I knew Mozilla would not stop there and integrate more AI tools into the browser. As much as I love Firefox, as a user from version 1 days, this AI integration without an option to turn it off is a reason to switch... But I didn't found an alternative yet (I'm well aware of all the browsers).
I used the wrong word. I meant it can't be uninstalled (like an addon). It's just part of the browser. If this was an optional addon for people to uninstall or replace if they want, it would be fine. It's not the first time Mozilla did that, even outside of Firefox too.
It's on my list. One of my criteria is, it has to be in the official repository for Archlinux. And Mullvad-Browser, like many of the other Firefox based browsers, are not.
I'm not saying they should switch to v8. Ideally they'd make their own performant JS engine but I doubt they actually have the resources for that. I'm just wishing for a browser that's actually good on all fronts even though it realistically cannot exist