profiler-analysis

Analyze Firefox performance profiles using the profiler-cli CLI tool. Trigger when given a profiler.firefox.com or share.firefox.dev link, a local profile path, or when the user wants to investigate an issue in a Firefox profile. Always use this skill instead of WebFetch for Firefox profiler URLs; WebFetch only retrieves the profiler UI's HTML shell and cannot access profile data, whereas profiler-cli downloads and parses the actual profile into a local daemon that supports structured queries over stacks, markers, threads, and samples. Not for capturing a new profile: if no profile exists yet and one has to be recorded use profile-capture instead.

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Run	Type	Date	Status
baseline vs usage-spec With / without context 4 days ago Completed	With / without context	4 days ago	Completed

Eval run

01a0fb5c-dbe6-72cb-b455-47366060a3bf

Run 4 days ago

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Repository: mozilla/enterprise-firefox
Path: .agents/skills/profiler-analysis/SKILL.md
Commit: 5e982c1

Evaluated: 4 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Firefox Networking Freeze Investigation Tab-Switching Lag Investigation Extension-Induced Firefox Hang: Bug Report

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