igfocus — IGFocus: Instagram, on your terms

Four ways to say “Seen”. Four walls.

Presence leaks over four transports, so four blockers are compiled from one list.

Nothing stays alive, so nothing is kept in memory.

State lives in the browser's own storage, re-read on every wake and watched by both ends: they converge with no message protocol.

One class turns it all off.

Every visual switch is a class on <html>, behind one root class. Removing it is disabling the extension.

Fails open, on purpose.

A receipt that slips through is a privacy miss. A pattern greedy enough to swallow a send is a broken inbox.

Thirty-seven switches, declared once.

The popup, the presets, the storage schema and the content-script gating are all generated from one declaration.