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Firefox automatically blocks Flash on some websites that may cause problems, but you have the option to turn this on or off.

{for not fx55}[[Template:update fx desktop]]{/for} Plugins such as Flash can cause security, speed and stability problems on some sites. In order to give you a safe, fast and stable browsing experience, Firefox automatically blocks Flash on some websites that potentially cause problems. =What kind of websites are on Firefox's blocklist?= Firefox blocks Flash on the following sites: *Websites that are embedded in other websites. *Sites that use plugins unnecessarily. If a popular website does not need Flash to work properly, Flash will be automatically blocked in order to give you a faster and better browsing experience. {note}For more information about domain blocking, see [https://developer.mozilla.org/en-US/docs/Plugins/Blocking_By_Domain Blocking by Domain] on Mozilla Developer Network.{/note} =Enabling Flash= Some websites require Flash in order to display properly. Here's how to enable Flash. {warning}This is not recommended as it may cause security and stability issues.{/warning} #Click the menu button [[Image:new fx menu]]. #Click {button Add-ons} #Click the {menu Plugins} panel. #Find Flash on the list and click {button Preferences}. #Remove the checkmark next to '''Block dangerous and intrusive Flash content'''.