How to Use Thunderbird 3: Deleting a Filter
Note: When you delete a filter, it is gone forever. As an alternative, you may want to modify your filter.
- In Thunderbird, select Message Filters from the Tools menu.

- In the Message Filters window, select the filter you want to delete, and then click on the Delete button.

- Click on the Yes button in the confirmation pop-up window.

- Click on the OK button in the Message Filters window.
- Click on the X icon in the upper right hand corner of the Message Filters window to close that window.
