# SigInspector - Statsig Event Log & Inspector

> View and inspect Statsig event logs, gate evaluations, and experiment exposures directly in Chrome DevTools.

Canonical page: [https://chrome-stats.com/d/siginspector](https://chrome-stats.com/d/siginspector)

## Overview

- **ID:** `siginspector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Applied Labs
- **Category:** web-development
- **Version:** 1.0.0
- **Last updated:** 2026-02-25
- **First published:** 2026-02-22
- **Size:** 45 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/siginspector/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/siginspector/privacy/](https://addons.mozilla.org/firefox/addon/siginspector/privacy/)

## Description

SigInspector is a developer tool for teams using the Statsig SDK. It adds a dedicated panel to Firefox DevTools that captures and displays Statsig network traffic in real time.

What you can see:
  - INIT — SDK initialization payloads, feature gate values, and experiment assignments
  - GATE — individual gate evaluation calls
  - EXP — experiment exposure events
  - LOG — custom event batches

Features:
  - Filter by event type (INIT, GATE, EXP, LOG)
  - Search by gate name, experiment name, or event name
  - Click any event to inspect the full request and response payload
  - Pause capture, clear the log, or export events as JSON
  - Works on any domain running the Statsig JavaScript SDK

## Rankings

- #141,936 — Overall
- #173 — event

## Permissions and access

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/siginspector)