Latest, 16 Oct 2026:38 usersMove the mouse over the chart for any month
Ratings count
monthly, 8 months
Latest, 16 Oct 2026:4 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Cookie & UA Manager
Take control of your browser environment for testing and debugging.
Session Manager is a professional tool designed for developers, QA testers, and power users. It allows you to seamlessly manage, migrate, and clone web sessions across different browser environments with precision.
Key Features:
- Session Portability: Effortlessly export your active session—including cookies (from the current site or all related third-party frames) and your current User Agent—into a standardized JSON file.
- Precise Restoration: Import configurations with an intelligent engine that resolves domain scope issues and prevents duplicates during the restoration process.
- User Agent Emulation: Simulate different devices and browsers. The extension updates request headers and leverages the modern navigator.userAgentData API (Client Hints) to ensure accurate environment simulation.
- Conflict-Free Import: Automatically detects and clears conflicting cookies before restoring a session to ensure a clean testing state.
- One-Click Environment Reset: Instantly clear cookies from the active container and revert to the default User Agent, allowing for rapid re-testing without manually clearing the entire browser cache.
- Privacy Focused: All data processing occurs locally on your machine. No data is sent to external servers.
How it works:
1) Save: Choose whether to export cookies from the current specific domain or include all third-party resources active in the tab, then download your structured JSON configuration.
2) Restore: Upload your JSON file and click "Restore". The extension automatically wipes conflicting data, applies the new identity parameters (User Agent & Cookies), and reloads the page to activate the session.
3) Reset: Click "Reset to Default" to instantly clear all cookies from the container and revert to your genuine browser profile.
Technical Information & Permissions Usage:
To provide these features, the extension requires the following permissions:
- Cookies: Required to export session data to JSON and restore it from files.
- Scripting: Necessary to inject the navigator emulation scripts into the page context for accurate device testing.
- DeclarativeNetRequest: Used to modify the User-Agent HTTP header at the network level.
- Host Permissions: Required to access and manage cookies across different domains during the export/import process.