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278 packages found

@webext-core/fake-browser

An in-memory implementation of webextension-polyfill for testing. Supports all test frameworks (Vitest, Jest, etc)

published version 1.5.2, 16 days ago8 dependents licensed under $MIT

1,850,653

@webext-core/isolated-element

Isolate content script UI's styles from the parent page. Supports all browsers (Chrome, Firefox, Safari)

published version 2.0.0, 4 months ago9 dependents licensed under $MIT

1,693,884

@webext-core/match-patterns

Utilities for working with match patterns.

published version 1.0.3, 3 years ago10 dependents licensed under $MIT

1,562,719

@plasmohq/storage

Safely and securely store data and share them across your extension and websites

published version 1.15.0, a year ago9 dependents licensed under $MIT

1,532,007

@crxjs/vite-plugin

Build Chrome Extensions with this Vite plugin.

published version 2.6.1, 6 days ago2 dependents licensed under $MIT

1,048,319

@webext-core/messaging

Light weight, type-safe wrapper around the web extension messaging APIs. Supports all browsers (Chrome, Firefox, Safari)

published version 3.0.2, 16 days ago8 dependents licensed under $MIT

175,177

vite-plugin-web-extension

![Vite Plugin Web Extension](../../.github/assets/social-banner.png)

published version 4.5.1, 2 months ago0 dependents licensed under $MIT

281,726

@plasmohq/messaging

Type-safe, zero-config messaging library for modern browser extensions

published version 0.7.2, a year ago9 dependents licensed under $MIT

178,699

fasttext.wasm.js

Node and Browser env supported WebAssembly version of fastText: Library for efficient text classification and representation learning.

published version 1.0.0, 2 years ago0 dependents licensed under $MIT

134,481

@webext-core/proxy-service

A type-safe wrapper around the web extension messaging APIs that lets you call a function from anywhere, but execute it in the background. Supports all browsers (Chrome, Firefox, Safari, etc)

published version 2.0.1, 16 days ago2 dependents licensed under $MIT

81,270

@mcp-b/transports

Browser transport implementations for Model Context Protocol (MCP) - postMessage, Chrome extension messaging, and iframe communication for AI agents and LLMs

published version 3.0.0, 20 days ago7 dependents licensed under $MIT

53,492

@metamask/client-mcp-core

HTTP daemon and CLI for agent-driven browser extension testing with Playwright

published version 0.5.0, 19 days ago0 dependents licensed under $(MIT OR Apache-2.0)

53,047

@webext-core/storage

A type-safe, localStorage-esk wrapper around the web extension storage APIs. Supports all browsers (Chrome, Firefox, Safari, etc)

published version 1.2.1, 16 days ago1 dependents licensed under $MIT

39,772

extension-develop

Develop, build, preview, and package Extension.js projects.

published version 3.18.4, 6 days ago2 dependents licensed under $MIT

18,577

extension-create

The standalone extension creation engine for Extension.js

published version 3.18.4, 6 days ago2 dependents licensed under $MIT

17,547

extension

Create cross-browser extensions with no build configuration.

published version 3.18.4, 6 days ago1 dependents licensed under $MIT

17,866

extension-install

Managed browser installer/uninstaller for Extension.js

published version 3.18.4, 6 days ago2 dependents licensed under $MIT

15,482

browser-extension-manifest-fields

Parse and resolve browser extension manifest fields to absolute paths.

published version 2.2.3, a month ago13 dependents licensed under $MIT

9,866

extension-from-store

Download public browser extensions from official stores

published version 0.2.0, 3 months ago1 dependents licensed under $MIT

8,382

@webext-core/job-scheduler

Schedule and run jobs in your background script

published version 1.1.0, 16 days ago0 dependents licensed under $MIT

9,437