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cpu usage excessive

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Max
Max
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the activity monitor on my mac shows cpu usage at almost 100% when firefox is active. with safari cpu @ about 15% or less. seems to slow the mac considerably. how to fix?

the activity monitor on my mac shows cpu usage at almost 100% when firefox is active. with safari cpu @ about 15% or less. seems to slow the mac considerably. how to fix?

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Terry
Terry
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This article may help.

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-or-cpu-resources