Measuring User Perceived Performance to Prioritize Product Work
summary
Benchmarking perceived performance for Firefox desktop and mobile uses unbranded Firefox and Chromium builds, lab sessions with one‑on‑one tasks, and a 7‑point Likert responsiveness rating to quantify perceptions. Studies run with ~20 participants per urban/rural cohort, use 90% confidence significance testing, and compare tasks like opening the browser, page loads, and form interactions. Initial Android results show Chrome outperforms Firefox on most tasks, a low‑bandwidth effect makes differences larger, and after three months Firefox shows statistically significant improvements and increased user preference.
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chapters (10)
- 0:00Introduction
- 1:00Defining performance
- 3:08Psychology of time
- 5:05Four pillars of performance
- 6:43Planning research studies
- 9:38Methodology and execution
- 12:36Running the study
- 14:10Analysis and findings
- 16:57Impact and iteration
- 19:04Program growth and resources
