The cliqz-adb-lang pref can be used to manually force the enabling of region-specific lists, overriding the automatice mechanism described above. This can be useful for debugging. Its format should be a semi-colon separated list of alpha2 codes, for example: de;fr

The modules.adblocker.enabled pref is used to toggle the loading of the adblocker's background code. It should always be true. To turn the adblocker on or off, the cliqz-adb pref should be used instead.

The cliqz-adb pref is used to decide if the adblocker should be enabled or not. Its value can be set to true or false and can be toggled from the control-center when clicking on the ON/OFF button in the Ad-block section (OFF = on all websites).

The cliqz-adb-strict pref can be set to true to enabled an experimental tracking-blocking mode of the adblocker. By default, only ads are blocked. Using this option, extra lists such as EasyPrivacy will be enabled, allowing more aggressive blocking. It is important to note that blocking ads only does not put privacy at risk, as Anti-Tracking makes sure no requests containing identifiers can leave the browser. On the other end, blocking trackers can speed-up the loading of webpages, but also increases the probability of site breakage.