You're not supposed to use it for an extended period of time, that's why it has "preview" in its name.
I'll be happy to use their other browsers (mainly, Firefox Focus, my default browser) until this one gets more polished, but the moment this one becomes a bit more stable and adds a few more features (adblock support is certainly on top of that list) will be the moment when I not just switch over, but delete every other browser I have installed on my phone. I can't believe a browser (any browser) makes me feel excited in 2019, but this one does.
I'll be happy to use their other browsers (mainly, Firefox Focus, my default browser) until this one gets more polished, but the moment this one becomes a bit more stable and adds a few more features (adblock support is certainly on top of that list) will be the moment when I not just switch over, but delete every other browser I have installed on my phone. I can't believe a browser (any browser) makes me feel excited in 2019, but this one does.