無タブ · mutabu – Get this Extension for 🦊 Firefox (en-GB)
addons.mozilla.org
Download 無タブ · mutabu for Firefox. A minimal, customisable new tab page with a dark/light theme, clock, bookmarks, ambient rain sounds, Japanese word of the day, quick access links, notes, and a visit-later list. Built for focus and aesthetics.

Now you don’t have to sideload an .xpi, they’ve approved it. i’ll release an update with a few more bugfixes and better implementation of some stuff this week but it’s in a pretty much usable state right now, if you have any suggestions please let me know!