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Why is firefox taking so much cpu

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When it indicates to disable all non-microsoft apps, this mean ALL! You can enable them again after your testing is complete. It is impossible to chase resource problems with that installed. Launch Firefox and test resources again using 1 tab, then 10 tabs. Decide what the relative baseline appears to be, make more notes & record that the performance changes from x to y, maybe grab a screenshot or two.

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Observe both memory & cpu usage after sorting by cpu, high to low. Restart your PC and let it stabilize for 5 minutes, then launch only your task manager.

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If you feel you're up to the challenge, start with the following So what should I do to minimize the amount of resources/ cpu that firefox gobbles up?Ĭhasing resources can be challenging and a requires a considerable effort.