# Firefox Add-ons & VS Code Extensions Scraper (Open VSX) (`pankajbhatia/browser-code-extensions-scraper`) Actor

Search Firefox add-ons (addons.mozilla.org) and VS Code-compatible extensions on Open VSX: users, downloads, ratings, permissions, version, license, categories, links. Look up by id or list the most popular.

- **URL**: https://apify.com/pankajbhatia/browser-code-extensions-scraper.md
- **Developed by:** [Pankaj Bhatia](https://apify.com/pankajbhatia) (community)
- **Categories:** Developer tools, Marketing
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.50 / 1,000 extensions

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## Firefox Add-ons & VS Code Extensions Scraper (Open VSX)

Search and collect extension data from two open marketplaces: **Firefox Add-ons** (addons.mozilla.org) and the **Open VSX Registry**, the open marketplace for VS Code-compatible editors such as VSCodium, Cursor, Gitpod and Theia. Firefox rows include daily **users**, weekly downloads, **rating** and rating count, categories and tags, the Mozilla "recommended" badge, **requested permissions** (including host permissions), version, license, minimum Firefox version, privacy-policy flag, created and updated dates, homepage and listing URL. Open VSX rows include **total downloads**, rating, review count, categories, tags, license, repository, publisher namespace, verified-publisher flag, deprecation flag, minimum VS Code version and last update. Developers' personal names and support emails are not returned. No login or API key is needed.

### Who is it for?

- **Extension developers and product teams** researching competitors, categories and gaps.
- **Security and IT teams** reviewing the permissions of popular add-ons.
- **Developer-tool marketers and VCs** tracking adoption trends.
- **Researchers** studying the browser and editor extension ecosystems.

### How to use it

1. Choose **stores** (the default is both).
2. Enter **search terms** (the default is "password manager"), or leave them empty and sort by **popular** to list the top extensions.
3. Optionally look up **extension IDs** (`ublock-origin`, `redhat.vscode-yaml`), filter by **category** or **minimum users/downloads**, and choose a **sort order**.
4. Click **Start** and export to CSV, Excel or JSON.

### Input example

```json
{"stores": ["firefox"], "searchTerms": ["ad blocker", "vpn"], "sortBy": "popular", "maxResultsPerSearch": 100}
```

### Output example

```json
{"store": "firefox", "id": "ublock-origin", "name": "uBlock Origin", "version": "1.75.0", "users": 11472925, "weeklyDownloads": 242311, "rating": 4.8, "ratingCount": 22263, "recommended": true, "permissions": ["alarms", "dns", "storage", "tabs", "webRequest", "<all_urls>"], "url": "https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/"}
```

### How much does it cost?

Pay-per-event: a small fee **per extension** returned, plus a tiny per-run start fee. There is no subscription and no separate platform usage cost. For example, 1,000 extensions cost about $0.50. Searches with no matches and error rows are **not charged**. Use **Max results per search and store** or **Maximum cost per run** to cap your spending.

### Use it through the API, integrations or AI agents

Run it from the Apify API, on a schedule, or connect it to Make, Zapier, n8n or Google Sheets. AI agents can find and call it through the Apify MCP server. Output is clean JSON with the same fields on every run.

### FAQ

**Is it legal?** Yes. Both marketplaces offer documented public APIs (the AMO API v5 and the Open VSX REST API) for reading public listing data. The tool reads only public listings, at a polite rate, and drops developers' personal names and support emails.

**Does it cover the Chrome Web Store or the Microsoft VS Code Marketplace?** No. Those stores have no public API, and their terms restrict automated collection. Open VSX hosts most popular open-source VS Code extensions.

**What does "users" mean for Firefox?** It is Mozilla's average daily users figure. Open VSX reports total downloads instead.

**Can I get reviews?** Not yet. This version returns listing data and ratings.

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- [Website to Markdown for AI & RAG](https://apify.com/pankajbhatia/website-to-markdown): turn web pages into clean Markdown for LLMs
- [Tech Stack Detector](https://apify.com/pankajbhatia/tech-stack-detector): find what any website is built with
- [Apple App Store Reviews Scraper](https://apify.com/pankajbhatia/app-store-reviews): App Store reviews and ratings for any app
- [ATS Jobs Scraper](https://apify.com/pankajbhatia/ats-jobs-scraper): jobs from Greenhouse, Lever, Ashby, Workable and more
- [Website Screenshot](https://apify.com/pankajbhatia/website-screenshot): full-page, mobile and PDF screenshots in bulk
- [PDF to Text & Markdown Extractor](https://apify.com/pankajbhatia/pdf-text-extractor): extract text from PDFs for AI and search
- [Domain WHOIS, DNS & SSL Checker](https://apify.com/pankajbhatia/domain-whois-dns-ssl-checker): bulk domain, DNS, email security and SSL checks
- [SEO Meta Tags & On-Page Audit](https://apify.com/pankajbhatia/seo-meta-tags-checker): bulk on-page SEO audit with fixes
- [Bulk URL Status & Broken Link Checker](https://apify.com/pankajbhatia/url-status-broken-link-checker): status codes, redirect chains and broken links
- [RSS & Atom Feed Reader](https://apify.com/pankajbhatia/rss-feed-reader): merge and filter many news feeds
- [Hacker News Scraper](https://apify.com/pankajbhatia/hacker-news-scraper): HN stories, comments and Who is hiring jobs
- [Academic Paper Search](https://apify.com/pankajbhatia/academic-paper-search): papers from Crossref, arXiv and PubMed
- [SEC EDGAR Filings & Financials](https://apify.com/pankajbhatia/sec-edgar-filings-financials): 10-K, 10-Q, 8-K filings and company financials
- [Apple Podcasts Scraper](https://apify.com/pankajbhatia/apple-podcasts-scraper): podcast details and full episode lists
- [App Store Top Charts & App Search](https://apify.com/pankajbhatia/app-store-top-charts): top free, paid and grossing app rankings
- [ClinicalTrials.gov Scraper](https://apify.com/pankajbhatia/clinicaltrials-gov-scraper): search and export clinical trials
- [USAspending Federal Awards](https://apify.com/pankajbhatia/usaspending-federal-awards): who won federal contracts and grants
- [Grants.gov Opportunities](https://apify.com/pankajbhatia/grants-gov-opportunities): open and forecasted federal grants
- [Weather Forecast & Alerts](https://apify.com/pankajbhatia/weather-forecast-alerts): 9-day forecasts for any city, plus U.S. alerts
- [EU TED Tenders Scraper](https://apify.com/pankajbhatia/ted-eu-tenders-scraper): European public procurement notices
- [Bulk Domain Availability Checker](https://apify.com/pankajbhatia/bulk-domain-availability-checker): check which domains are free to register
- [Product Recalls Scraper](https://apify.com/pankajbhatia/product-recalls-fda-cpsc-nhtsa): FDA, CPSC and NHTSA vehicle recalls
- [Federal Register Scraper](https://apify.com/pankajbhatia/federal-register-documents): U.S. rules, notices and comment deadlines
- [npm & PyPI Package Stats](https://apify.com/pankajbhatia/npm-pypi-package-stats): downloads, versions and licenses for packages
- [Open Library Books Scraper](https://apify.com/pankajbhatia/open-library-books-scraper): book search and ISBN lookup
- [UK Contracts Finder Scraper](https://apify.com/pankajbhatia/uk-contracts-finder-scraper): UK public tenders and contract awards
- [Wikipedia Scraper](https://apify.com/pankajbhatia/wikipedia-scraper): articles, full text and page views
- [Currency Exchange Rates (ECB)](https://apify.com/pankajbhatia/currency-exchange-rates-ecb): official latest and historical FX rates
- [Barcode Product Lookup](https://apify.com/pankajbhatia/barcode-product-lookup): EAN/UPC barcodes to product and nutrition data
- [Global Company Registry Search (LEI)](https://apify.com/pankajbhatia/gleif-lei-company-search): official company records and parents
- [VIN Decoder (NHTSA)](https://apify.com/pankajbhatia/vin-decoder-nhtsa): bulk vehicle specs from VINs
- [PubMed Scraper](https://apify.com/pankajbhatia/pubmed-scraper): biomedical articles and abstracts
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- [Remote Jobs Aggregator](https://apify.com/pankajbhatia/remote-jobs-aggregator): remote jobs from Remote OK, Jobicy and Arbeitnow
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- [World Bank Indicators](https://apify.com/pankajbhatia/world-bank-indicators): GDP, population and 1,400+ indicators
- [TV Shows & Episodes Scraper](https://apify.com/pankajbhatia/tv-shows-episodes-scraper): TV shows, episodes, cast and schedules
- [WordPress Plugins & Themes Scraper](https://apify.com/pankajbhatia/wordpress-plugins-themes-scraper): plugin and theme installs and ratings
- [US Nonprofit Search (IRS)](https://apify.com/pankajbhatia/us-nonprofit-search-irs): tax-exempt organizations with size and category
- [Music Metadata Scraper (MusicBrainz)](https://apify.com/pankajbhatia/musicbrainz-music-metadata): artists, albums, tracks and ISRCs
- [Package Stats: crates.io, RubyGems, Packagist & NuGet](https://apify.com/pankajbhatia/package-registry-stats): Rust, Ruby, PHP and .NET package stats
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- [Public Holidays API](https://apify.com/pankajbhatia/public-holidays-api): holidays and long weekends for 100+ countries
- [US Treasury Rates](https://apify.com/pankajbhatia/us-treasury-rates-yields): Treasury yield curves, T-bill rates and national debt
- [USGS Earthquake Search](https://apify.com/pankajbhatia/usgs-earthquake-search): worldwide earthquakes by area and magnitude
- [NOAA Tides & Water Levels](https://apify.com/pankajbhatia/noaa-tides-currents): tide predictions and water data for U.S. coasts
- [UK Police Crime Data](https://apify.com/pankajbhatia/uk-police-crime-data): UK street-level crimes by postcode
- [UK Food Hygiene Ratings](https://apify.com/pankajbhatia/uk-food-hygiene-ratings): official UK food hygiene ratings
- [Open Source Vulnerability Scanner](https://apify.com/pankajbhatia/open-source-vulnerability-scanner): known vulnerabilities for open-source packages
- [FDIC Bank Data](https://apify.com/pankajbhatia/fdic-bank-data): US banks, branches, financials and failures
- [FEMA Disaster Declarations](https://apify.com/pankajbhatia/fema-disaster-declarations): US federal disaster declarations and aid
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# Actor input Schema

## `stores` (type: `array`):

Which marketplaces to search.

## `searchTerms` (type: `array`):

e.g. password manager, ad blocker, python. Leave empty to list top extensions.

## `extensionIds` (type: `array`):

Firefox slug (ublock-origin) or Open VSX id (redhat.vscode-yaml).

## `sortBy` (type: `string`):

Order of results.

## `category` (type: `string`):

Firefox slug (privacy-security) or Open VSX name (Programming Languages).

## `minUsersOrDownloads` (type: `integer`):

0 = any.

## `includeDetails` (type: `boolean`):

Add license, tags, repository and publisher (one extra request per extension).

## `maxResultsPerSearch` (type: `integer`):

Limit for each search term in each store.

## Actor input object example

```json
{
  "stores": [
    "firefox",
    "open-vsx"
  ],
  "searchTerms": [
    "password manager"
  ],
  "extensionIds": [],
  "sortBy": "relevance",
  "category": "",
  "minUsersOrDownloads": 0,
  "includeDetails": true,
  "maxResultsPerSearch": 50
}
```

# Actor output Schema

## `results` (type: `string`):

One row per browser add-on or code extension.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "stores": [
        "firefox",
        "open-vsx"
    ],
    "searchTerms": [
        "password manager"
    ],
    "extensionIds": [],
    "category": "",
    "minUsersOrDownloads": 0,
    "maxResultsPerSearch": 50
};

// Run the Actor and wait for it to finish
const run = await client.actor("pankajbhatia/browser-code-extensions-scraper").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {
    "stores": [
        "firefox",
        "open-vsx",
    ],
    "searchTerms": ["password manager"],
    "extensionIds": [],
    "category": "",
    "minUsersOrDownloads": 0,
    "maxResultsPerSearch": 50,
}

# Run the Actor and wait for it to finish
run = client.actor("pankajbhatia/browser-code-extensions-scraper").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "stores": [
    "firefox",
    "open-vsx"
  ],
  "searchTerms": [
    "password manager"
  ],
  "extensionIds": [],
  "category": "",
  "minUsersOrDownloads": 0,
  "maxResultsPerSearch": 50
}' |
apify call pankajbhatia/browser-code-extensions-scraper --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,pankajbhatia/browser-code-extensions-scraper"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/hvc3XLr6nTheGsqsg/builds/OjCaY4OKnHjcOgojc/openapi.json