Blockchain & Cryptocurrency Glossary

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dApp Browser

1 min read
Pronunciation
[dee-app brow-zer]
Analogy
Like a smartphone with built‑in NFC for contactless payments instead of requiring an external card reader.
Definition
A web or mobile browser with built‑in blockchain wallet and Web3 provider support, enabling seamless interaction with decentralized applications without separate extensions.
Key Points Intro
dApp browsers integrate wallet functionality and RPC connectivity for native Web3 experiences.
Key Points

Embedded wallet: Manages private keys and signing UI.

Web3 injection: Provides `ethereum` or `cardano` objects to pages.

Network switching: Allows users to change chains in settings.

Security prompts: UI for transaction approval and permissions.

Example
Brave Wallet Browser includes a built‑in Ethereum wallet so users can access Uniswap without installing MetaMask.
Technical Deep Dive
Browser forks Chromium, integrates a secure enclave for key storage, and injects a Web3 provider script at document start. Transaction requests trigger native UI dialogs signed by the OS-level wallet module.
Security Warning
Compromised browser builds can leak keys; verify official releases and enable auto‑updates.
Caveat
Built‑in wallets may lag in feature updates compared to standalone extensions.
Related Terms
Web3 Provider
WalletConnect

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