Minichan no longer offers any browser extensions or addons.
The extensions previously offered below will NOT work; they were last tested in ~2016 or earlier and, as of 2026, have long since been defunct. They will not be repaired or replaced. The extensions' maintainers are no longer around. If you previously installed an extension or addon, you're encouraged to uninstall it. This page is kept solely for posterity.
Download: here
This extension will notify you in your browser when you've been cited, a topic on your watchlist gets a reply, or you get a PM. You can add it to Chrome by downloading the file, and then drag & dropping it to your Tools → Extensions page. More info here.
Download: here
This application will notify you when you've been cited or a topic in your watchlist gets a reply. To install it you need to enable untrusted sources in your device's settings like so:

Safari: here. (By stal)
Firefox: here. (Updated! By anon)
Use these at your own risk!