Firefox has a CPU usage issue and, consequently, can cause overheating problems in some laptops, particularly ultraportables. According to a documented on a Mozilla support page entitled “Firefox consumes a lot of CPU resources,” states: “At times, Firefox may require significant CPU [central processing unit] resources in order to download, process, and display Web content.” And forum postings like this one about a Dell Netbook are not uncommon: “Mini9 would get way too hot.” The Mozilla support page goes on to say that “you can review and monitor CPU usage through specific tools” and describes ways to limit CPU usage, such as: “A Firefox add-on, called Flashblock, allows you to selectively enable and disable Flash content on Web sites,” CNet noted.
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