Focus Browser

A tiny macOS menu-bar app that automatically switches your default web browser based on the active Focus mode. Example: in Work Focus your default becomes Chrome; in Personal Focus it becomes Safari.

Set it up once and it runs in the background — no interaction needed afterward except macOS's own confirmation dialog when the browser actually changes.

Requirements

• macOS 26.6 or later.
• Must live in /Applications — macOS only indexes App Intents there, so anywhere else the Focus Filter never appears and the app does nothing.

Install

Download the app (recommended)

1. Grab the latest FocusBrowser.zip from the Releases page.
2. Unzip it and drag Focus Browser into /Applications (not ~/Applications — see Requirements).
3. Open it. (The build is notarized by Apple, so it opens without warnings.)

Build from source

brew install xcodegen           # one-time
git clone https://github.com/jeffehobbs/FocusBrowser.git
cd FocusBrowser
./build.sh install              # builds → /Applications/FocusBrowser.app

First-run setup

1. Launch the app — a 🌙 moon icon appears in the menu bar.
2. Open System Settings ▸ Focus and select a Focus (e.g. Work). The app's menu has an Open Focus Settings… button for this.
3. Click Add Filter, choose Focus Browser, and pick the browser you want while that Focus is on.
4. Repeat for each Focus you care about. Focuses without the filter are simply left alone.
5. Optionally enable Launch at login — it isn't required, since macOS launches the app on demand when a Focus changes.

That's it — switch Focus and your default browser follows, with macOS's confirmation dialog each time the browser actually changes.