The URL Filters tab will allow you to apply URL exclusion filters at the account level. Adding URLs to the exclusion list follows the same process as when adding filters to a folder.
To add a URL to the report filters, simply place it within the field and select Add URL.
Please make sure that you include a trailing / to your URL.
To remove a URL once it has been added to the report filters, click on the red x icon to the right of the URL.