In the Crest catalog
extension-js/extension.js
The cross-browser extension framework.
- Stars
- 5.2K
- Forks
- 141
- Language
- TypeScript
- Last push
- 22d ago
- Last release
- 24d ago
Linked by the package’s own registry metadata.GitHub (opens in a new tab)
Package · npm
extension
npm · v4.1.31 · MIT
The cross-browser extension framework. Build Chrome, Edge, Firefox, and Safari extensions with no build configuration.
Tentative categories were assigned with moderate confidence (0.5 to 0.75): they are shown, but they do not count toward a category’s momentum. How categories work
Technologies
Install
npm install extensionAdoption
- Downloads (30 days)
- 30.6K
- Observeddownloads / 30 days
- Popularity
- Lower half on npm
- Derived18th percentile within npm
- Dependents
- Collectinghistory
- Collecting
- Maintenance
- 0.99
- DerivedRelease cadence and recency, 0 to 1
- Releases per year
- 40
- 578 versions over its life
Growth by period
Derived by Crest of Tech from two observations of npm’s own figure, a period apart. Nothing is stored or estimated: without an observation near the period’s start, the period is still collecting.
- 7 days
- +19.1% · 7d
- Derived+4.9K downloads / 30 days, SEP 30 → OCT 7
- 30 days
- +57.5% · 30d
- Derived+11.2K downloads / 30 days, SEP 7 → OCT 7
- 90 days
- +48.3% · 90d
- Derived+10K downloads / 30 days, JUL 6 → OCT 7
- 1 year
- +466.4% · 1y
- Derived+25.2K downloads / 30 days, NOV 10 → OCT 7
Adoption history
Adoption historydownloads / 30 days · 76 observations
Table of observations (76)
| Day | downloads / 30 days | Dependents |
|---|---|---|
| OCT 7, 2026 | 30,629 | Not observed |
| OCT 6, 2026 | 31,117 | Not observed |
| OCT 5, 2026 | 31,707 | Not observed |
| OCT 4, 2026 | 30,629 | Not observed |
| OCT 3, 2026 | 30,389 | Not observed |
| OCT 2, 2026 | 28,370 | Not observed |
| OCT 1, 2026 | 27,670 | Not observed |
| SEP 30, 2026 | 25,719 | Not observed |
| SEP 29, 2026 | 25,143 | Not observed |
| SEP 28, 2026 | 24,678 | Not observed |
| SEP 27, 2026 | 24,340 | Not observed |
| SEP 26, 2026 | 24,750 | Not observed |
| SEP 25, 2026 | 25,492 | Not observed |
| SEP 24, 2026 | 24,685 | Not observed |
| SEP 23, 2026 | 24,273 | Not observed |
| SEP 22, 2026 | 23,672 | Not observed |
| SEP 21, 2026 | 22,983 | Not observed |
| SEP 20, 2026 | 22,754 | Not observed |
| SEP 19, 2026 | 23,057 | Not observed |
| SEP 18, 2026 | 23,663 | Not observed |
| SEP 17, 2026 | 22,155 | Not observed |
| SEP 16, 2026 | 20,120 | Not observed |
| SEP 15, 2026 | 18,901 | Not observed |
| SEP 14, 2026 | 19,301 | Not observed |
| SEP 13, 2026 | 17,842 | Not observed |
| SEP 12, 2026 | 16,890 | Not observed |
| SEP 11, 2026 | 17,239 | Not observed |
| SEP 10, 2026 | 18,788 | Not observed |
| SEP 9, 2026 | 19,653 | Not observed |
| SEP 8, 2026 | 19,206 | Not observed |
| SEP 7, 2026 | 19,453 | Not observed |
| SEP 6, 2026 | 19,971 | Not observed |
| SEP 5, 2026 | 20,486 | Not observed |
| SEP 4, 2026 | 20,421 | Not observed |
| SEP 3, 2026 | 20,169 | Not observed |
| SEP 2, 2026 | 21,093 | Not observed |
| SEP 1, 2026 | 21,296 | Not observed |
| AUG 31, 2026 | 21,460 | Not observed |
| AUG 30, 2026 | 21,178 | Not observed |
| AUG 29, 2026 | 21,860 | Not observed |
| AUG 28, 2026 | 22,560 | Not observed |
| AUG 27, 2026 | 22,754 | Not observed |
| AUG 26, 2026 | 22,740 | Not observed |
| AUG 25, 2026 | 23,263 | Not observed |
| AUG 24, 2026 | 23,005 | Not observed |
| AUG 23, 2026 | 23,321 | Not observed |
| AUG 22, 2026 | 23,792 | Not observed |
| AUG 21, 2026 | 23,656 | Not observed |
| AUG 20, 2026 | 23,106 | Not observed |
| AUG 19, 2026 | 22,678 | Not observed |
| AUG 18, 2026 | 23,366 | Not observed |
| AUG 17, 2026 | 24,309 | Not observed |
| AUG 16, 2026 | 24,130 | Not observed |
| AUG 15, 2026 | 24,697 | Not observed |
| AUG 14, 2026 | 25,457 | Not observed |
| AUG 13, 2026 | 26,324 | Not observed |
| AUG 12, 2026 | 25,953 | Not observed |
| AUG 11, 2026 | 24,418 | Not observed |
| AUG 10, 2026 | 22,924 | Not observed |
| AUG 9, 2026 | 23,566 | Not observed |
| AUG 8, 2026 | 24,571 | Not observed |
| AUG 7, 2026 | 25,067 | Not observed |
| AUG 6, 2026 | 25,138 | Not observed |
| AUG 5, 2026 | 25,640 | Not observed |
| AUG 4, 2026 | 26,338 | Not observed |
| AUG 3, 2026 | 25,992 | Not observed |
| AUG 2, 2026 | 26,486 | Not observed |
| AUG 1, 2026 | 26,707 | Not observed |
| JUL 31, 2026 | 27,948 | Not observed |
| JUL 30, 2026 | 28,838 | Not observed |
| JUL 29, 2026 | 28,552 | Not observed |
| JUL 28, 2026 | 28,065 | Not observed |
| JUL 27, 2026 | 27,225 | Not observed |
| JUL 26, 2026 | 26,534 | Not observed |
| JUL 20, 2026 | 25,471 | Not observed |
| JUL 13, 2026 | 23,090 | Not observed |
Facts from the registry
- Latest version
- v4.1.31
- 578 versions
- First published
- FEB 24, 2012
- Last release
- OCT 4, 2026
- 20d ago
- Licence
- MIT
Repository
Dependencies latest version · v4.1.31
Runtime 25
- @types/chrome
* - @types/node
* - @types/webextension-polyfill
* - brave-location
3.1.1 - chrome-location2
4.1.1 - chromium-location
2.1.2 - commander
^15.0.0 - edge-location
2.3.1 - extension-create
4.1.31 - extension-develop
4.1.31 - extension-install
4.1.31 - firefox-location2
3.2.0 - floorp-location
1.0.0 - librewolf-location
1.2.1 - opera-location2
2.1.1 - pintor
0.3.0 - semver
^7.7.3 - unique-names-generator
^4.7.1 - update-check
^1.5.4 - vivaldi-location2
2.1.1 - waterfox-location
2.1.1 - ws
^8.20.1 - wsl-support
0.1.0 - yandex-location
2.1.1 - zen-location
1.0.0
Related packages
- extension-createThe standalone extension creation engine for Extension.jsPublished from the same repository
- extension-developDevelop, build, preview, and package Extension.js projects.Published from the same repository
- extension-installManaged browser installer/uninstaller for Extension.jsPublished from the same repository
- webbrowserOpen URLs in web browsers available on a platformSame primary category
- impitA library for making HTTP requests through browser impersonationSame primary category
- query-stringParse and stringify URL query stringsSame primary category
- tldtsLibrary to work against complex domain names, subdomains and URIs.Same primary category
- joseJWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimesSame primary category
- camoufoxWrapper around Playwright to help launch CamoufoxSame primary category
Related news
No published news event mentions this package or its repository yet.