Any number of Firefox windows. One hood.

FireLeash is a free, open-source split-pane shell for Windows that runs real Firefox windows as panes — split them, pin them, herd them. No accounts, no service, no price. Currently in private beta.

Why three foxes? A leash of foxes is the medieval hunting term for exactly three. Many Firefoxes, one hood — FireLeash.

Real Firefox. Every pane is a genuine Firefox window — your profile, your extensions, your engine. Not a webview.
Split anything. Horizontal or vertical, per pane, as deep as your monitor survives.
Pin what matters. Pinned panes hold their ground while you rearrange the rest.

The idea, as a toy

the real thing runs actual Firefox

Beta v1.1.01 · free forever · from the Divisionless workshop — github.com/Divisionless

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Pane 2 — enter a URL

→◫⬓✕

fireleash://design

FireLeash

The identity, briefly

The law of three. The mark always shows exactly three heads — because a leash is three. The trio is the name, drawn. Heat converges on the stare: gold lives only in the eyes and the plume tips.

The fire ramp

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Type — Windows-native

Bahnschrift carries the headlinesDISPLAY

Segoe UI carries the sentences, like this one.BODY

Cascadia Code carries the labels — $ fireleashUTILITY

Rules of the house

Fire is scarce. One accent per surface; heat means state.
Charcoal, not gray. Every neutral leans warm toward the ramp.
One master, always. Every size of the mark is the mark itself.

FireLeashUnleash the Hunt