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FirefoxCP Web Content processes are non-responsive after waking up from sleep.

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Most mornings when I wake my computer up from sleep, I see that Firefox is hanging, using >100% cpu and there are several FirefoxCP Web Content processes hanging as well. How can I prevent this from happening?

After forcing firefox to quit, the browser starts up normally, but the FirefoxCP Web Content processes stick around.

I have recently tried to reset my firefox instance, but that did not seem to help.

I am using a Macbook Pro from late 2015. All other information should be available below. Thanks.

Most mornings when I wake my computer up from sleep, I see that Firefox is hanging, using >100% cpu and there are several FirefoxCP Web Content processes hanging as well. How can I prevent this from happening? After forcing firefox to quit, the browser starts up normally, but the FirefoxCP Web Content processes stick around. I have recently tried to reset my firefox instance, but that did not seem to help. I am using a Macbook Pro from late 2015. All other information should be available below. Thanks.
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