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blacklist

Extensions, themes, and plugins that cause stability or security issues in Firefox are put on a "blocklist." We'll explain what steps to take if this happens.

[[Find and install add-ons to add features to Firefox|Add-ons]] (extensions, themes, and plugins) that violate [https://developer.mozilla.org/docs/Mozilla/Add-ons/Add-on_guidelines Mozilla's add-on guidelines] are put on a "blocklist". __TOC__ = What does the blocklist do? = == Disables unsafe add-ons == Firefox will block the unsafe add-on from loading and present you with the following message: {note}Firefox has determined that the following add-ons are known to cause stability or security problems{/note} {for mac}<br>[[Image:Add-ons Blocklist Mac1]]<br><br>{/for} To prevent these add-ons from running, click {button Restart Firefox}. == Blocks unsafe add-ons from being installed == When you try to install an unsafe add-on that is on the blocklist, Firefox will block the installation and display the message: {note}The add-on ''name'' has a high risk of causing stability or security problems and can't be installed.{/note} {for fx17} ==Prevents plugins from running automatically== Firefox can prevent a [[Use plugins to play audio, video, games and more|plugin]] from running automatically (which prevents many issues). When Firefox blocks a plugin you'll see a message similar to this:<br><br>[[Image:Click to play 1]] You can then choose to run the plugin or update it (if an update is available). To learn more, see [[Why do I have to click to activate plugins?]] {/for} = Steps to take = == If the installed add-on is disabled == === Extension or theme === #{for win7,win8}At the top of the Firefox window, click on the {button Firefox} button, and then click {menu Add-ons}{/for}{for mac}On the menu bar, click on the {menu Tools} menu, and then click {menu Add-ons}{/for}{for winxp,linux}At the top of the Firefox window, click on the {menu Tools} menu, and then click {menu Add-ons}{/for}. The Add-ons Manager tab will open. # On the "Tools for all add-ons" [[Image:Add-on Tools Icon]]menu, make sure that the {menu Update Add-ons Automatically} menu item is checked. === Plugin === [[T:plugincheck]] {note}'''Note:''' If there are no updates available, you may need to contact the developer of the plugin that was blocked.{/note} == Installation blocked == If you were blocked from installing an add-on, check to see if there is an updated version of the add-on you were trying to install. {note}'''Note:''' If there is not an updated version to install, you may need to contact the developer of the add-on that was blocked.{/note} = What unsafe add-ons are on the blocklist? = See the '''[https://addons.mozilla.org/firefox/blocked/ list of blocked add-ons]'''. [[Template:ShareArticle|link=http://mzl.la/PSKXSM]]