#### Windows (GPO)
```
-Software\Policies\Mozilla\Firefox\WebsiteFilters\Block\1 = "<all_urls>"
-Software\Policies\Mozilla\Firefox\WebsiteFilters\Exceptions\1 = "http://example.org/*"
+Software\Policies\Mozilla\Firefox\WebsiteFilter\Block\1 = "<all_urls>"
+Software\Policies\Mozilla\Firefox\WebsiteFilter\Exceptions\1 = "http://example.org/*"
```
#### macOS
```