Mozilla Thunderbird is an e-mail client that allows you to check e-mail from private domains and popular providers such as Hotmail or Gmail. If you frequently use Thunderbird or store many e-mails, you may notice that it uses an increasing amount of memory and may lag or freeze. Thunderbird includes a tool known as compacting that can reduce the resources that the program requires and improves performance. For example, compacting may help Thunderbird download or delete messages faster.
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Open Thunderbird on your computer.
Click on any account in the sidebar.
Open the "File" menu and click "Compact Folders." Alternatively, you can right-click individual folders and choose "Compact."
Repeat this process for all accounts.
Tips and warnings
- You can instruct Thunderbird to automatically compact folders by clicking "Tools," "Options," "Advanced," "Network & Disk Space," "Disk Space," "Compact folder when it will save over 100 KB" and "OK."
- Deleting or moving messages from your Inbox folders can also improve Thunderbird's performance.
- Storing large messages or many messages in your Inbox can slow down Thunderbird's performance and cause the program to increase memory usage.
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