This article explains what settings to check to make sure 1Blocker is turned on and ready to protect you.
On iOS:
The first thing to confirm is that all 1Blocker extensions are enabled in your iPhone's or iPad's Settings > Apps > Safari > Extensions (under "General"). There will be eight switches related to 1Blocker. They are responsible for specific rule categories. Our extensions do not slow down Safari, and therefore, to make it more convenient for you, we recommend enabling all of them in your device's Settings and managing content blocking in the 1Blocker app instead.
Now, it's worth checking whether these categories are turned on in the app itself. You just need to open the 1Blocker app and enable the content-blocking filters you want to use. Done, you are all set.
On macOS:
On macOS devices, the process is pretty similar. After the installation is completed, in the Safari browser, go to Safari > Settings > Extensions, and enable all the checkboxes related to 1Blocker.
By the way, there will be a separate 1Blocker Actions extension. Even though it is optional, it can also come in handy depending on the features you need:
It is responsible for iCloud sync and cloud rule updates
It shows what exactly was blocked on web pages you visit
It lets you quickly allow domains, hide page elements, make sites https-only, and more
After enabling the extensions, please launch the app at least once to ensure the blocking categories you are interested in are also activated there.
If 1Blocker doesn't seem to be working
If everything is configured as described above, but there are still too many ads and annoyances in Safari, try toggling active categories under the General and Regional tabs of the app. This will make Safari re-sync our filters.
Also, the system can change some essential settings during significant updates. Hence, it's worth checking that content blockers are enabled on all websites in iOS Settings > Apps > Safari > Content Blockers (under "Settings for Websites") on iOS and in Safari > Settings > Websites > Content Blockers on macOS.
Finally, reinstalling the app may also help Safari reconfigure our extensions.