Air Traffic Control

Create save routes to file links into spaces, and open routes to control which browser opens them - like mail rules for your bookmarks.

How It Works

Air Traffic Control has two types of routes:

• Save Routes - When you save a page (⌘⌃S), save routes are checked. The first matching route files the link into the specified space. Save routes can also filter by which browser you’re saving from.
• Open Routes - When you click a link in the sidebar, open routes are checked. The first matching route opens it in the specified browser instead of your default.

Rules are evaluated top-to-bottom. The first matching rule wins. If no rules match, the link uses your current space and default browser.

ATC rules override your saved browser preference and default browser. Only modifier-click actions (Opt-click, right-click → Open With) take priority over ATC. See Browser Selection Priority for the full order.

Setup

1. Open Preferences → Air Traffic Control
2. Toggle Enable Air Traffic Control
3. Click Add Route to create your first rule

Creating a Rule

When you click Add Route, you first choose the route type:

Save Route

Routes saved links to a specific space, and optionally a specific folder inside that space.

Open Route

Opens matching links in a specific browser, or in a specific browser profile.

A live preview at the bottom of the editor shows exactly what the rule will do as you configure it.

Smart Suggestions

Air Traffic Control watches what you open from the sidebar and suggests new rules based on patterns it sees, so you don’t have to invent every rule from scratch.

• From the Command Panel - When the URL you’re about to open matches a strong pattern (e.g. you’ve opened the same domain in the same browser repeatedly), the Command Panel offers a one-click row to create the rule and open the link in the suggested browser at the same time.
• From Preferences - Open Preferences - Air Traffic Control to see suggestions based on your recent open history. Click a suggestion to convert it into a regular rule that you can then edit or reorder like any other.

Suggestions stay out of the way until they’re confident. You can ignore them and your existing rules keep working unchanged.

Managing Rules

• Reorder - Drag rules to change priority (first match wins)
• Enable/Disable - Toggle individual rules without deleting them
• Edit - Click a rule to modify its settings
• Delete - Remove rules you no longer need

Per-space default browser

Each space can have its own default browser, configured in Preferences → Air Traffic Control. When you open a link from that space, it opens in the space’s assigned browser instead of the system default.

The priority order for browser selection:

1. ATC open routes (highest priority)
2. Per-space default browser
3. System default browser (lowest priority)

ATC open routes always win. If no open route matches, the space’s browser is used. If the space has no assigned browser, the system default applies.

Examples

Save Routes

Open Routes

Combining Both

Want GitHub links to go to your Dev space and always open in Chrome? Create two rules:

1. Save Route: github.com → Development space
2. Open Route: github.com → Chrome

Each rule does one thing clearly - no ambiguity.

Tips

• Start broad, refine later - Begin with domain-level patterns like github.com, then add specific patterns if needed
• Use “contains” for most rules - It’s more flexible than exact matching
• Order matters - Put more specific rules above general ones
• Source browser filters are powerful - Use them to keep different browsers organized into separate spaces automatically
• Combine with Spaces - ATC is most useful when you have multiple spaces for different contexts