Hotfix Solves Add-On Issues in Cliqz for Windows and Mac

An issue with add-on signing prevented existing and new add-ons from running or being installed. An automatically rolled out update fixes the problem.

An issue with add-on signing prevented existing and new add-ons from running or being installed in the Cliqz Browser.

Björn GreifEditor

Did you get an error message when opening your browser that your installed add-ons were disabled, or you can’t install additional browser extensions? This is due to an issue with Firefox’s add-on signing last weekend, which also affects all Firefox-based browsers such as Cliqz. As a result, add-ons could no longer be used or downloaded from the Firefox Add-ons Store. Cliqz has already released a hotfix which solves the problem and makes all add-ons usable again.

The hotfix will install itself automatically within 24 hours. You can also trigger the update manually by clicking the menu button Browser Menu Icon in the upper right of the Cliqz Browser and selecting Help > About Cliqz. You will see “Cliqz is up to date” or “Restart to update Cliqz”. After restarting the browser, all add-ons should work as usual.

Faulty Add-On Signing

The cause of the problem is a faulty add-on signing. All extensions available in the Firefox Add-ons Store are verified by Mozilla and then signed with a certificate. Once you install an add-on, your browser checks the certificate and only allows add-ons that have been signed. Unfortunately, the certificate used by Mozilla to sign the add-on expired. As a result, all add-ons were classified as unverified and automatically blocked or disabled.

Add-ons integrated directly into the Cliqz Browser and signed by Cliqz such as re:consent or HTTPS Everywhere were not affected by the issue. All other extensions should work properly again after installing the hotfix.

We apologize again for any inconvenience. If you continue to have problems with your add-ons, our support team will be happy to help.