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Firefox automatically uses settings that work best with your computer. You can always change these settings.

Firefox automatically uses settings that work best with your computer. You can modify these settings in your Firefox [[T:optionsorpreferences]] page: #[[T:optionspreferences]] #In the {menu General} panel, go down to the '''Performance''' section. #Uncheck the box next to ''Use recommended performance settings''. {for fx94} [[Image:Fx94PerformanceSettings]] {/for} You will then be able to change the following: '''Use hardware acceleration when available:''' This setting allows Firefox to use your computer's graphics processor, if possible, instead of the main processor, to display graphics-heavy web content such as videos or games. This frees up resources on your computer so it can run other applications, like Firefox, faster. This box is checked by default but the feature isn't available for all graphics processors. You must restart Firefox after changing this setting, before it will take effect. {for not fx94} '''Content process limit:''' With [https://developer.mozilla.org/Firefox/Multiprocess_Firefox Multiprocess Firefox], also called electrolysis or ''e10s'' , Firefox runs web content for all tabs separately from the main Firefox process for increased security and performance. Using [https://wiki.mozilla.org/Electrolysis/Multiple_content_processes multiple content processes] can further increase performance and minimize the impact of content process crashes. You can modify this setting to increase or decrease the content process limit. [[Image:Fx89PerformanceSettings]] You can set between one and eight content processes. The default is eight. Having more content processes can improve performance when using multiple tabs, but it will also use more memory. You can reduce the number of content processes if your computer is running out of memory. {note}'''Tip:''' {for win,linux}If your computer's system information{/for}{for mac}If the information about your Mac{/for} shows more than 8 GB of RAM, you would likely benefit from a high content process limit.{/note} {/for}