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blacklist, block, blocking

Add-ons that violate Mozilla's Add-on Policies or jeopardize user safety and privacy may be blocked from running in Firefox.

When Mozilla becomes aware of add-ons that violate our Add-on Policies and jeopardize user safety or privacy, or that otherwise go against user expectations, we may take steps to block them from running in Firefox. __TOC__ = Why does Mozilla block some add-ons from running in Firefox? = While most add-ons are created with the best intent to provide useful and delightful features, they can also be used to compromise personal data and security. When we become aware of add-ons that pose a risk to your security and privacy according to our [https://extensionworkshop.com/documentation/publish/add-on-policies?utm_source=support.mozilla.org&utm_medium=referral&utm_content=add-on-blocking Add-on Policies], we take steps to prevent them from running in Firefox. Add-ons may be blocked proactively because they violate our policies, or in response to an abuse report. For more information, please read the [https://extensionworkshop.com/documentation/publish/add-ons-blocking-process?utm_source=support.mozilla.org&utm_medium=referral&utm_content=add-on-blocking Add-on Blocking Process] article on [https://extensionworkshop.com?utm_source=support.mozilla.org&utm_medium=referral&utm_content=add-on-blocking Firefox Extension Workshop]. = How does add-on blocking work? = Once a block is implemented, Firefox will disable the add-on and you will not be able to override the block. Blocked add-ons cannot access your browsing activities or deliver malware. For more technical information about how blocking works, please read [https://blog.mozilla.org/addons/2020/08/24/introducing-a-scalable-add-ons-blocklist/ Introducing a scalable add-ons blocklist] on the [https://blog.mozilla.org/addons/ Add-ons Blog]. = How will I know if an add-on is blocked? = If you suspect you have installed an add-on that has been blocked, you can verify its status by going to the Firefox Add-ons Manager. [[T:Open Add-ons|type=Extensions]] Any blocked extensions will appear in the “Disabled” section. They will display a label that explains the extension has been disabled due to security or stability issues. [[Image:Blocked Add-on - Add-ons Manager]] = I see a blocked add-on in my Add-ons Manager. What should I do? = You do not need to take any action if you see a blocked add-on in your Add-ons Manager. The add-on is disabled and cannot access your activities or deliver other malware. If you would prefer, you can now safely [[Disable or remove Add-ons|remove it]]. Since some malicious add-ons gather and sell data collected from their users, you may want to check [[Get started with Firefox Monitor|Firefox Monitor]] to see if your personal information was exposed in a breach. = Can I install an add-on after it has been blocked? = Once an add-on has been blocked, Firefox will prevent you from installing it. You will see this notification: [[Image:Notification - Add-on is blocked and cannot be installed]] = Can blocks be lifted? = Depending on the severity of the violation, the abuse history of the developer, and other relevant factors, some blocks may be lifted once the developer uploads a new version that is approved by Mozilla. If that happens, users who had previously downloaded the add-on will immediately be able to use it again once the add-on has been updated to the latest approved version. To make sure you are always using the most up-to-date version of an add-on (extension or theme): # [[T:Open Add-ons|type=Extensions]] # Click on the settings icon [[Image:Add-on Tools Icon]] and make sure that the {menu Update Add-ons Automatically} menu item is checked. = How can I find a replacement for a blocked add-on? = You can look for a replacement on [https://addons.mozilla.org?utm_source=support.mozilla.org&utm_medium=referral&utm_content=add-on-blocking addons.mozilla.org], Mozilla’s official directory of add-ons. We suggest browsing the [[Recommended Extensions program|Recommended Extensions program]] to find add-ons that meet our highest standards of security, functionality, and user experience.