Firefox Engine Optimization
Built on the Firefox engine for strong compatibility and stable long-term usage in multi-account environments.
Firefox-based antidetect browser
CosLogin Antidetect Browser
Manage unlimited browser profiles on a single device. Create secure, isolated identities for every account.
Native Browsing
Natural browsing behavior.
Profile Isolation
Keep accounts completely separated
Multi-Account
Manage accounts at scale.
Why choose CosLogin?
Built for Efficiency and Stability
Manage multiple accounts and browser environments more efficiently.
Isolated Browser Environments
Each profile runs independently with isolated cookies, cache, local storage, and browsing data to reduce account linking.
Advanced Fingerprint Protection
Realistic device parameter simulation generates authentic browser fingerprints closely resembling real user environments.
Multi-Account Anti-Detection
Manage multiple accounts from a single device while reducing account association risks.
Automation & API Support
Supports Selenium, Playwright, Puppeteer, and API integrations for advanced automation workflows.
Team Workspaces & Access Control
Manage team members, permissions, shared environments, and workflows from a centralized workspace.
What is CosLogin?
Built for Multi-Account Management
CosLogin is a professional Firefox-based antidetect browser designed for multi-account workflows. It creates separate browser environments with fingerprint protection and proxy isolation, giving each account a secure, independent identity.
Manage hundreds or even thousands of accounts with ease and support business growth at scale.
Supports HTTP, HTTPS, and SOCKS5 proxies, allowing each account to operate in an independent network environment.
Compatible with Selenium, Playwright, Puppeteer, and Open APIs for automation, bulk operations, and workflow integration.
Industries & Use Cases
Powering Workflows Across Industries
Ecommerce
Manage multiple stores across Amazon, eBay, Shopee, Lazada, Etsy, and other e-commerce platforms.
Social Media Marketing
Operate and manage account portfolios across Facebook, TikTok, Instagram, X, and other social platforms.
Affiliate Marketing
Ideal for affiliate campaigns, traffic operations, and large-scale account management.
Advertising
Manage multiple advertising accounts across Facebook Ads, Google Ads, TikTok Ads, and more.
Web3 & Crypto
Supports wallet isolation, multi-wallet management, airdrop participation, and blockchain interactions.
Data Collection & Automation
Combine browser automation and APIs for data collection, bulk operations, and workflow automation.
Retail Price Monitoring
Monitor competitor pricing, conduct market research, and track retail markets across regions.
Brand Protection & Monitoring
Monitor website content, advertisements, and brand visibility across different markets and locations.
Research & Investigation
Suitable for research, media, and investigative workflows that require isolated browsing environments.
Pricing
Plans for Every Stage of Growth
Flexible plans for individuals, professionals, and scaling teams.
Free
Entry-level access for evaluation and basic use cases.
$0/ month
- Firefox-Based Engine
- Fingerprinting for Multiple Systems
- Bulk Proxy Configuration
- Login via Credentials / Cookies
- Team Collaboration & Role Permissions
- Bulk Bookmark Import & Management
- Human-like Input Simulation
- Geolocation Control
- Local API
- Online Customer Support
Base
Production-ready multi-account operations.
$19/ month
- All Free features included
- More browser profiles
- More team members
- Bulk profile creation
- Bulk cookie import/export
- Unlimited profile sharing/transfer
- Restore deleted profiles
- Firefox & local extensions support
- Cross-device sync
- Priority support
Custom
Collaborative workflows with scalable team management.
Custom
- Customize the Profiles
- Customize the team
FAQ
Frequently Asked Questions
Yes. CosLogin is based on the Firefox engine, maintaining Firefox compatibility and browsing experience while adding browser isolation and multi-account management capabilities.
Yes. You can explore CosLogin's core features for free to determine whether it fits your workflow and business needs.
Yes. Each browser profile can be configured independently with HTTP, HTTPS, or SOCKS5 proxies.
Yes. Team workspaces support member management, permission control, environment sharing, and collaborative workflows.
Pro and Team plans include cloud synchronization, allowing browser environments and settings to be synced across trusted devices.
CosLogin allows you to create and manage multiple isolated browser environments on a single device. Each environment has its own data, settings, and proxy configuration.
Partners
Trusted Ecosystem Partners
Working with trusted partners worldwide to build an open ecosystem.
Contact
Start Managing Multiple Accounts More Efficiently
Contact the CosLogin team to learn more about features, partnership opportunities, and enterprise solutions.
Email Support
For product inquiries, feedback, and business partnerships, please contact us via email.
support@coslogin.comTelegram
Contact us via Telegram or scan the QR code below.
https://t.me/CosLoginBrowser
Contact our support team via WeChat or scan the QR code below.
coslogin