What is JetStream 3 and why should Linux users care?

New JS/WASM benchmark punishing real web apps. Firefox 149 leads by 12% on Linux — speed for your tabs.

Does Firefox 149 use less battery than Chrome 147 on Linux?

Nope. Chrome draws 20% less power, runs cooler. Laptop warriors, stick with Google.

Will Firefox beat Chrome overall in 2025?

Maybe on benchmarks. Real web? Chrome's ecosystem lock-in wins — unless regulators crack down.

Firefox 149 Smokes Chrome 147 in JetStream 3 on Linux – By 12% – But Power Hog Alert

Firefox 149 just dropped a 12% lead over Chrome 147 in the new JetStream 3 benchmark on Linux. But if you're battery-conscious, Chrome's still got tricks.

theAIcatchup Apr 10, 2026 4 min read

Benchmark graphs showing Firefox 149 outperforming Chrome 147 in JetStream 3 on Ubuntu Linux laptop

⚡ Key Takeaways

Firefox 149 outperforms Chrome 147 by 12% in JetStream 3 on Linux. 𝕏
Chrome edges out in power efficiency and memory use. 𝕏
Mozilla's open-source edge could close the gap long-term. 𝕏

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#Chrome 147 #Firefox 149 #JetStream 3 #Linux benchmarks

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Originally reported by Phoronix

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