Use Cases
- E-Commerce
  Securely operate e-commerce platform stores and steadily expand market scale.
- Social Marketing
  Easily manage social media accounts and precisely optimize marketing strategies.
Features
- All Platform
  Fingerprint browser combined with cloud phone, supporting all-platform websites and mobile applications.
- Window Sync
  Reduce the burden of repetitive tasks, synchronize operations to all windows.
Resources
Pricing
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Polkadot{.js} Extension

Enhance your Web3 experience with Polkadot{.js} Extension integrated with FlashID. Securely manage Polkadot, Kusama, and Substrate accounts, sign transactions effortlessly.

Secure Polkadot Account Management

Manage your Polkadot accounts securely outside dApps. Inject accounts and sign transactions with FlashID’s advanced fingerprint protection.

https://chromewebstore.google.com/detail/polkadot%7Bjs%7D-extension/mopnmbcafieddcagagdcbnhejhlodfdd

Secure Polkadot Account Management

Polkadot{.js} Extension is a secure browser extension for managing Polkadot, Kusama, and Substrate accounts outside of dApps. Integrated with FlashID’s fingerprint browser technology, it ensures privacy and seamless transaction signing.

Secure Account Management

Add and manage Polkadot, Kusama, and Substrate accounts securely within FlashID, keeping secrets safe in extension storage.

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Secure Account Management

Effortless Transaction Signing

Sign messages and transactions for specific accounts without exposing secrets to dApps, ensuring maximum security.

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Effortless Transaction Signing

Multi-Network Compatibility

Supports Polkadot, Kusama, and Substrate networks with seamless integration into FlashID for private browsing.

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Multi-Network Compatibility

Unlimited Multiplicity

Multiple devices, no limits
No purchase limit, no multiplicity limit, no opening limit

Multi-Platform Control

Anytime, anywhere, just click
No client download required, accessible via PC and mobile browsers

Application Management

Application management so easy
Bulk install, uninstall, and launch applications

RPA

Leverage FlashID’s pre-built RPA templates for fast automation or custom workflows in secure cloud.

API

FlashID API handles account lifecycles and automates browser actions: batch social logins.

One-Click Sharing

Efficient management
Join a team with one click, share cloud devices among multiple users

Client Success Stories Trusted Worldwide

David Lee
Blockchain Operations Manager, Crypto Ventures

“The Polkadot{.js} Extension with FlashID has made managing accounts and signing transactions incredibly secure and efficient.”
Sarah Johnson
DeFi Specialist, Web3 Innovations

“FlashID paired with Polkadot{.js} Extension ensures our accounts stay private while interacting with dApps seamlessly.”
Alex Smith
Web3 Developer, Polka Network

“This extension has become invaluable for our team, providing secure signing without compromising privacy in FlashID.”

Elevate Your Web3 Security

Polkadot{.js} Extension enables secure account management and transaction signing in FlashID’s fingerprint browser environment.

Elevate Your Web3 Security

Common related content QA

Can Polkadot{.js} Extension manage accounts outside dApps?

Yes, it securely manages Polkadot, Kusama, and Substrate accounts outside applications, injecting them for signing.

Is it safe with FlashID?

Absolutely. FlashID's fingerprint technology combined with the extension keeps all secrets private and secure.

How does the extension handle transaction signing?

It injects accounts and provides signing capabilities without exposing secrets, only returning signatures to dApps.

Does it support multiple networks?

Yes! Fully compatible with Polkadot, Kusama, and Substrate-based networks.

Is Polkadot{.js} Extension compatible with all browsers?

Optimized for Google Chrome and integrates perfectly with FlashID browser.

How do I install the Polkadot{.js} Extension?

Install directly from the Chrome Web Store or via FlashID's extension management.

Does FlashID support Firefox for this extension?

Currently optimized for Chrome; Firefox support is under consideration.

What if the extension isn't working?

Update to the latest version, clear cache, and restart FlashID browser.

Does the extension store my private keys?

Account secrets are stored securely in extension storage only, never shared with dApps.

Can I customize Polkadot{.js} Extension settings?

Yes, accept/reject signing requests and manage accounts via intuitive settings.

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Connect all your platform accounts

Thanks to our fingerprint technology, you no longer need to worry about your account being at risk, you just need to focus on your business.