Question

Performance Regression: After update to FireFox 18 permanent high CPU load

After the last update FireFox started to continuously eat a whole CPU on my 2-core laptop. My usage pattern (regarding browsed sites and/or activated plugins) has not changed, but I must confess that I'm a heavy user of plugins.

I suspect the problem may arise from a changed performance behaviour of a plugin due to the new JS engine of FF18, but how can I easily trace this problem further down. I.e. is there a way to inspect the collected performance data of firefox (activated)?

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