Firefox-Based Multi-Account Browser
Introduction



What is CosLogin?
CosLogin is a browser management platform designed for individuals and teams that operate multiple online accounts. Each profile runs in an independent environment with separate cookies, cache, local storage, browser data, fingerprint settings, and proxy configuration.
The platform can support workflows such as e-commerce management, social media marketing, advertising, affiliate marketing, market research, data collection, price monitoring, and other multi-account operations.
Key Features
Isolated Browser Profiles
Create isolated browser environments with separate cookies, storage, browsing data, and account sessions.
Custom Browser Fingerprints
Configure browser parameters, device characteristics, geolocation, and other fingerprint settings for each profile.
Individual Proxy Configuration
Assign HTTP, HTTPS, or SOCKS5 proxies to separate browser profiles and manage proxy details in bulk.
Multi-Account Management
Create, organize, import, transfer, and manage multiple browser profiles from one interface.
Team Collaboration
Add team members, assign permissions, share profiles, and manage environments without sharing credentials.
Automation and API
Use Local API, Selenium, Playwright, and Puppeteer to automate repetitive operations.


