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Learn about a workaround that lets you active compact mode if you need to. This feature isn't supported and we still recommend using normal mode.

{warning}Compact mode is not currently supported. For the recommended and supported experience, we encourage you to keep the normal density setting.{/warning} Starting with [[Find what version of Firefox you are using|Firefox version]] 89, the compact mode density option was removed from the [[Customize Firefox controls, buttons and toolbars|Customize]] panel. If you are an advanced user, it's still possible to activate it in the [[Configuration Editor for Firefox|Configuration Editor]] (''about:config'' page). #[[Template:aboutconfig]] #Find the {pref browser.compactmode.show} preference. #Switch the toggle to '''{pref true}''' and then close the tab. #[[Template:fx29menu]] #Click {menu More tools}. #Choose {menu Customize toolbar…}. #At the bottom of the panel, click {button Density}. #Choose {menu Compact (not supported)} from the menu options. #;{for mac}[[Image:Fx94CustomizeDensity-mac]]{/for}{for win}[[Image:Fx96Density-Compact]]{/for} #Click {button Done}.