Are your Thunderbird folders taking up a lot of disk space, even though you only have a few messages? Is Thunderbird slow to open folders? It’s probably because you have not compacted your folders.<\/p>\n
When you delete a message, it doesn’t really get deleted from the folder. It gets marked<\/em> as deleted. Thunderbird sees that marking, and knows not to display the message. Compacting a folder will command Thunderbird to remove all messages marked as deleted from that folder.<\/p>\n To compact your folders, go to the File<\/strong> menu and select Compact Folders<\/strong>. If you’re having any issues, post in the Thunderbird Support forum at https:\/\/support.mozillamessaging.com\/en-US\/kb\/ask<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Are your Thunderbird folders taking up a lot of disk space, even though you only have a few messages? Is Thunderbird slow to open folders? It’s probably because you have not compacted your folders. When you delete a message, it… <\/p>\n
\nTo compact an individual folder, right-click on the folder and select Compact<\/strong>.<\/p>\n