LatencyLens by Phillip
Inspect runtime page latency and performance timing signals.
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Extension Metadata
About this extension
LatencyLens profiles active-page runtime performance from real browser timing entries. It reports critical latency signals (TTFB, DOMContentLoaded, load, paint metrics), lightweight web vitals (LCP/CLS), and a domain-level resource pressure summary.
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Required permissions:
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Data collection:
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More information
- Add-on Links
- Version
- 1.0.0
- Size
- 20 KB
- Last updated
- 2 months ago (Feb 27, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Version History
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