firefox-devtools/profiler
Firefox Profiler — Web app for Firefox performance analysis observed · 2026-08-28
Health v2 · maintenance only
98/100
- Activity 99
- Release rhythm 97
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 0.0
- age_days: 5297
- days_rel: 23
- days_push: 7
- n_releases_24m: 9
Adoption not part of the score
1529 stars · 490 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Firefox Profiler is a web application for visualizing performance profiles recorded from Firefox and other browsers via the Gecko Profiler. It runs entirely client-side and can consume JSON output from any compatible profiler.
Use cases
- analyze firefox performance profiles
- visualize gecko profiler recordings
- profile web app performance bottlenecks
- share browser performance profiles with a url
- inspect jank and slow frame causes in firefox
- import profiles from other profilers
When to choose
- you need to analyze Firefox or Gecko profiler captures
- you want a free, client-side profile viewer with no data upload requirements
- you need to share performance profiles via links with teammates
When to avoid
- you need profiling for non-browser applications like native or server software
- you require automated performance regression testing in CI
- you need a CLI-only workflow without a web interface
Facets
application · maturity active
data-visualization analytics developer-tools developer-tools performance web-development browser-extensions browser cross-platform profiler performance-analysis gecko-profiler react redux typescript client-side firefox-devtools web-server
2 sources
- readme: https://github.com/firefox-devtools/profiler · fetched 2026-08-28 · 85463616d0dd
- homepage: https://profiler.firefox.com · fetched 2026-08-29 · 0ecac0a80b87
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| firefox-devtools/profiler | main | 98 |
For agents
markdown · JSON · MCP: product_card(name="firefox-devtools/profiler")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem