# @types/webextension-polyfill

> TypeScript definitions for webextension-polyfill

Latest version **0.12.6** (published 2026-09-01) · MIT license · 0 weekly downloads

## Install

```sh
npm install @types/webextension-polyfill
pnpm add @types/webextension-polyfill
yarn add @types/webextension-polyfill
bun add @types/webextension-polyfill
```

## Health

**Score 70/100 (B)** — status: active.

Positive: has types; no vulnerabilities; recently updated; high maintenance score; popular repo; extremely popular.

Warnings: low downloads; no esm support; pre 1.0.

## Facts

| | |
|---|---|
| Version | 0.12.6 |
| Published | 2026-09-01 |
| First published | 2021-07-17 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 507 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 51432 |
| Maintainers | types |

## Links

- npm: https://www.npmjs.com/package/@types/webextension-polyfill
- Repository: https://github.com/DefinitelyTyped/DefinitelyTyped
- Homepage: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/webextension-polyfill
- npm.io page: https://npm.io/package/@types/webextension-polyfill

## Recent versions

- 0.12.6 (latest) — 2026-09-01
- 0.12.5 (ts5.4) — 2026-02-19
- 0.12.3 (ts5.1) — 2025-03-01
- 0.12.1 (ts4.9) — 2024-08-28
- 0.10.7 (ts4.7) — 2023-11-22
- 0.10.2 (ts4.4) — 2023-08-22
- 0.10.0 (ts4.2) — 2023-01-12
- 0.9.2 (ts4.1) — 2022-11-26
- 0.9.0 (ts4.0) — 2022-05-31
- 0.8.2 (ts3.8) — 2021-11-23
- 0.8.1 (ts3.7) — 2021-10-25
- 0.8.0 (ts3.6) — 2021-07-17
- 0.12.4 — 2025-09-30
- 0.12.2 — 2025-02-22
- 0.12.0 — 2024-08-13
- … 7 more at https://npm.io/package/@types/webextension-polyfill/versions

## README

# Installation
> `npm install --save @types/webextension-polyfill`

# Summary
This package contains type definitions for webextension-polyfill (https://github.com/mozilla/webextension-polyfill).

# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/webextension-polyfill.

### Additional Details
 * Last updated: Tue, 01 Sep 2026 18:37:51 GMT
 * Dependencies: none

# Credits
These definitions were written by [Santo Pfingsten](https://github.com/Lusito), [Matt N.](https://github.com/mnoorenberghe), and [Josh Berry](https://github.com/josh-berry).

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_Source: https://npm.io/package/@types/webextension-polyfill · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._