# mozilla/geckodriver

WebDriver Classic proxy for automating Firefox through Marionette

Repository: https://github.com/mozilla/geckodriver
Canonical: https://ross.abutalabs.com/products/geckodriver
Homepage: https://firefox-source-docs.mozilla.org/testing/geckodriver/
License: MPL-2.0
License Family: copyleft
Topics: webdriver, geckodriver, firefox, rust, gecko
Last push: 2026-08-25T12:00:44+00:00

## Health v2 (maintenance only)
Score: 86/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 61, longevity 100
- inputs: {"age_days": 4338, "days_push": 8, "days_rel": 44, "gap_med": 254.5, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 7479, forks 1520 (observed 2026-08-28T04:10:00.195969+00:00)

## What it is
geckodriver is a standalone proxy that exposes the W3C WebDriver protocol over HTTP and translates those calls into Firefox's Marionette remote protocol. It allows WebDriver-compatible clients such as Selenium to automate and test Gecko-based browsers like Firefox.

## Use cases
- run Selenium tests against Firefox
- automate Firefox browser tasks with WebDriver
- set up cross-browser end-to-end testing
- drive Firefox from a WebDriver client in Python or Java
- configure Firefox capabilities for automated sessions
- scrape or interact with web pages via browser automation

## When to choose
- you need to automate or test Firefox with Selenium or another W3C WebDriver client
- you want a standards-compliant WebDriver implementation for Gecko browsers
- you need pre-built binaries or cargo installation across major platforms

## When to avoid
- you are automating Chromium-based browsers (use chromedriver instead)
- you need WebDriver BiDi rather than the classic WebDriver protocol
- you want a pure in-process browser automation API without a proxy

## Facets
- artifact type: cli-tool
- maturity: stable
- function: testing, e2e-testing, http-server, developer-tools
- domain: testing, web-development, browser-extensions, developer-tools
- platform: windows, cross-platform, cli, rust
- tags: webdriver, selenium, firefox, marionette, gecko, browser-automation, w3c-webdriver, automation, linux, macos

## Member repositories
- mozilla/geckodriver (main) score 86

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:00.195969+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:37:36.292616+00:00, confidence not recorded.
  - readme: https://github.com/mozilla/geckodriver (fetched 2026-08-28T04:10:00.195969+00:00, sha 9ab8f004fbb0)
  - homepage: https://firefox-source-docs.mozilla.org/testing/geckodriver/ (fetched 2026-08-29T08:33:25.341455+00:00, sha 4dd757682830)
  - site_page: https://firefox-source-docs.mozilla.org/index.html (fetched 2026-08-29T08:33:25.344068+00:00, sha 23d5dbede3b0)
  - site_page: https://firefox-source-docs.mozilla.org/devtools-user/about_colon_debugging/index.html (fetched 2026-08-29T08:33:25.345973+00:00, sha ff333d907452)
  - site_page: https://firefox-source-docs.mozilla.org/devtools-user/index.html (fetched 2026-08-29T08:33:25.347927+00:00, sha bb0398eb9a93)
  - site_page: https://firefox-source-docs.mozilla.org/devtools/index.html (fetched 2026-08-29T08:33:25.349725+00:00, sha 1e26958c1196)
  - site_page: https://firefox-source-docs.mozilla.org/tools/moztreedocs/index.html (fetched 2026-08-29T08:33:25.351290+00:00, sha dcbba387028c)
  - site_page: https://developer.mozilla.org/en-US/docs/Web/WebDriver/Capabilities (fetched 2026-08-29T08:33:25.352778+00:00, sha 0e3a877a042a)
  - site_page: https://firefox-source-docs.mozilla.org/testing/perfdocs/index.html (fetched 2026-08-29T08:33:25.354388+00:00, sha bf18ab538a80)
- Data as of 2026-08-30T08:39:29.467469+00:00.