Inter-Component Communication

chrome.runtime Messaging API

Message Types and Formats

Asynchronous Communication

Error Handling

sendMessage Implementation

onMessage Event Handling

Response Mechanisms

Timeout Management

Port-Based Communication

Connection Establishment

Message Streaming

Connection Lifecycle

Background to Content Script

Content Script to Background

Popup to Background

Cross-Tab Communication

External Website Communication

Message Routing

Broadcast Messaging

Message Queuing

Error Recovery