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App Store Extensions

About​

The App Store is the heart of Extra Wallet's extensibility. Unlike traditional wallets that bundle every possible feature into a monolithic app, Extra Wallet uses a modular architecture.

The core wallet is lightweight and focused on the essentials: portfolio management and security. All other features—from dApp connectivity to advanced risk analysis—are available as optional extensions.

App Store Overview

Security & Architecture​

Our extension system is designed with security as the top priority. It is not just a "plugin system"; it is a security feature in itself.

Lazy Loading & Performance​

Extension code is lazy-loaded. This means the JavaScript bundle for an extension is fetched from the server only when you explicitly enable it. If you never use a specific feature, its code never enters your browser environment. This keeps the wallet fast and lightweight.

Disabled by Default​

To minimize the attack surface, and ensure maximum security, we follow a strict "opt-in" policy. All third-party extensions are disabled by default. This prevents any unverified code from loading or executing in your wallet environment. You must explicitly enable an extension to use its features.

Isolation​

While extensions run within the main wallet application, they do not have direct access to your private keys or the signer's internal memory. All sensitive operations (like signing a transaction) still require the extension to request approval from the isolated Signer, just like the core wallet does.

What extensions provide​

  • New tools & features: Add capabilities like swapping, staking, or address management.
  • Extra chain support: Interact with chains not natively supported by the core UI.
  • Security enhancements: Add layers of risk analysis or transaction simulation.
  • Connectivity: Connect to dApps via WalletConnect or other protocols.

Available Extensions​

The ecosystem is constantly growing. Some popular extensions include:

  • Address Checker: Scans addresses for risk flags and contract info.
  • WalletConnect: Connects your wallet to Web3 dApps.
  • EVM Transaction Simulation: Simulates transactions to predict outcomes before signing.
  • QR Safe Keeper: Encrypts secrets into QR codes for safe storage.
  • Address Book: Manages your frequently used addresses.
  • EVM Swap: Swaps tokens directly within the wallet interface.

Installing & Managing​

  1. Open the App Store: Click the "App Store" icon in the sidebar.
  2. Browse: Explore the list of available extensions.
  3. Enable: Toggle the switch next to an extension to install it. The code will be downloaded and initialized immediately.
  4. Use: The extension's features will now be available in the relevant parts of the UI (e.g., a new tab, a dashboard widget, or a transaction option).

To remove an extension, simply toggle it off. Its UI and functionality will be instantly removed from your session.

Developer Info​

  • Built and maintained by the Extra Wallet team.
  • Source: Extra Wallet