If you’re feeling like Thunderbird is taking up too much space on your hard drive, deleting your profile is an easy way to free up some space. Here’s how:
- Open Thunderbird and click the menu button (three lines in a row at the top of the window), then choose “Profile.”
- In the “Profile” window that pops up, click the “Delete Profile” button.
- Confirm that you want to delete your profile by clicking the “Yes” button. ..