Right-click on the extension icon. Choose “Manage Extensions.”
If there is no icon on the browser toolbar, go to settings and disable it there.
Chrome:
Opera:
Mozilla:
Now pull the “slider” to the left and turn off the blocker.
If you have other extensions or ad blockers installed, go to the main menu "Extensions" and disable them so that you don't lose Cashback.
And that's it! Now you can make purchases with Cashback. Enjoy shopping!