# Session Importer

> Effortlessly export, import, and manage LocalStorage, SessionStorage, and Cookies via JSON. Transfer active sessions between browsers, debug environments, or modify site data instantly with a modern editor, and precise import controls.

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

## Overview

- **ID:** `session-importer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Neeno
- **Category:** web-development,privacy-security
- **Daily users:** 17
- **Weekly downloads:** 7
- **Version:** 1.2.4
- **Last updated:** 2025-12-19
- **First published:** 2025-12-15
- **Size:** 96 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/session-importer/)

## Description

<strong>Session Importer by Neeno</strong> is a comprehensive developer tool designed to streamline the management of browser storage and session state. It bridges the gap between environments by allowing users to capture, transfer, and manipulate complex site data with precision and ease and with a user friendly interface

<strong>Key Features &amp; Capabilities</strong>
<ul><li><strong>Seamless Data Portability (JSON)</strong><ul><li><strong>One-Click Export:</strong> Instantly serialize and copy the full state of <code>LocalStorage</code>, <code>SessionStorage</code>, and <code>Cookies</code> for the active domain into a standardized JSON format on your clipboard.</li><li><strong>Smart Import:</strong> Paste session data from any environment. The extension parses the JSON and prepares it for injection, allowing for cross-browser session sharing (e.g., transferring a logged-in state from Chrome to another instance).</li></ul></li><li><strong>Advanced Live Editor</strong><ul><li><strong>Interactive Viewer:</strong> Deep dive into your storage with a clean, paginated interface that handles large datasets efficiently.</li><li><strong>Real-Time Modification:</strong> Edit keys and values directly within the popup. Supports "dirty state" tracking, ensuring changes are batched and applied atomically upon confirmation.</li><li><strong>Cookie Management:</strong> granular control over cookie attributes, including Domain, Path, and Secure flags.</li></ul></li><li><strong>Granular Import Review</strong><ul><li><strong>Staging Area:</strong> Unlike basic tools that blindly overwrite data, Session Importer offers a "Review Stage" before importing.</li><li><strong>Conflict Resolution:</strong> Review incoming keys against existing data, rename keys to avoid conflicts, or delete specific items from the import payload before they touch your browser.</li></ul></li><li><strong>Developer-Centric Utilities</strong><ul><li><strong>Robust Clearing:</strong> A "Danger Zone" utility to forcefully clear all site data (Storage + Cookies) and reload the page to reset the environment completely.</li><li><strong>Search &amp; Filter:</strong> deeply integrated search functionality allows you to find specific keys or values within imports or the live editor instantly.</li><li><strong>Theme Adaptive:</strong> Features a polished UI that automatically syncs with your preferences, offering both a clean Light Mode and a high-contrast Dark Mode.</li></ul></li><li><strong>Security &amp; Performance</strong><ul><li><strong>Sanitized Inputs:</strong> Built-in XSS prevention ensures that viewing malicious storage strings does not compromise the extension interface.</li><li><strong>Optimized Rendering:</strong> Uses virtualized rendering logic to handle thousands of storage keys without freezing the browser interface.</li></ul></li></ul>

## Rankings

- #26,583 — Overall
- #27 — import
- #43 — session
- #106 — environment
- #114 — mission
- #138 — transfer

## Permissions and access

### Permissions

- `scripting`
- `activeTab`
- `clipboardRead`
- `cookies`

### Host permissions

- `<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).

## Similar extensions and apps

- [Neeno's Cookie Importer](https://chrome-stats.com/d/neeno-cookie-importer) — 751 users, 5.00 / 5
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- [Session & Local Storage Copier](https://chrome-stats.com/d/session-local-storage-copier) — 13 users
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- [Local Storage Explorer](https://chrome-stats.com/d/local-storage-explorer) — 335 users, 3.29 / 5

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