[Bug 66350] Re: Firefox uses high CPU for extended periods of time when spawning a new window with many tabs already open

[Alexander Sack]

you remember if you have the download manager window open when CPU usage
peeks?

** Tags added: mt-needsummary mt-needtestcase

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Firefox uses high CPU for extended periods of time when spawning a new window with many tabs already open
https://launchpad.net/bugs/66350