Thunderbird may crash because of attachments due to various reasons such as corrupted or incompatible attachment files, conflicts with other installed add-ons or plugins, insufficient system resources, or issues with the Thunderbird program itself. Large or numerous attachments can also overwhelm the program and cause it to crash. It is recommended to update Thunderbird to the latest version, disable unnecessary add-ons, and ensure that attachments are not too large or in a problematic file format to prevent crashes. **

To mark attachments in Thunderbird, you can simply hover your mouse over the attachment in the email. A small toolbar will appear with options to save, open, or detach the attachment. You can also right-click on the attachment to access additional options such as marking it as important or opening it with a specific application. Additionally, you can customize Thunderbird's settings to automatically mark certain types of attachments for easier identification. **

To transfer folders from your email account to Thunderbird, you can use the import feature in Thunderbird. First, open Thunderbird and go to the Tools menu. Then, select Import and choose the option for Mail. Follow the prompts to select your email account and the folders you want to import. Thunderbird will then transfer the selected folders from your email account into its own system. This process allows you to easily access and manage your email folders within Thunderbird. **

To set up your email inbox from web.de on Mozilla Thunderbird, you will need to open Thunderbird and go to the "Tools" menu. From there, select "Account Settings" and click on "Account Actions" followed by "Add Mail Account." Enter your name, web.de email address, and password, then click "Continue." Thunderbird will automatically configure the settings for your web.de email account, and you can start using your inbox right away. **

To search for attachments in Thunderbird, you can use the search bar at the top of the Thunderbird window. Simply type in the file extension of the attachment you are looking for (e.g. .pdf, .docx) or the name of the file. Thunderbird will then display all emails containing attachments that match your search criteria. You can also use the Advanced Search feature in Thunderbird to narrow down your search by specifying criteria such as sender, recipient, or date. **

To automatically empty Thunderbird folders, you can create a message filter that moves emails from a specific folder to the Trash folder. This can be done by setting up a filter rule based on criteria such as sender, subject, or keywords. Once the filter is created, Thunderbird will automatically move matching emails to the Trash folder, effectively emptying the selected folder. Additionally, you can schedule Thunderbird to empty the Trash folder at regular intervals by going to Tools > Options > Advanced > Network & Disk Space and setting the desired frequency for emptying the Trash folder. **

The problem with attachments in Thunderbird 78140 is that users have reported issues with attachments not being displayed or opened correctly. Some users have experienced attachments showing up as garbled text or not being able to open them at all. This can be frustrating for users who rely on Thunderbird for handling their email attachments efficiently. **

To export local folders with messages from Thunderbird to a new computer, you can follow these steps: 1. Open Thunderbird on your old computer and go to the local folders that you want to export. 2. Right-click on the local folder and select "Export" to save it as an .mbox file. 3. Transfer the .mbox file to your new computer using a USB drive, cloud storage, or any other method. 4. Open Thunderbird on your new computer, go to the local folders, and then right-click to select "Import" and choose the .mbox file you transferred. This will import the local folders with messages from your old computer to the new one. **