When it comes to email security, having a reliable antivirus program is crucial. However, sometimes this can cause issues with your email client, such as Thunderbird. One common problem that Thunderbird users encounter is the conflict between the antivirus program The Best and the email client. This conflict can prevent Thunderbird from functioning properly and can be quite frustrating for users.
The The Best antivirus program is known for its robust security features and protection against various threats. However, its strong security protocols can sometimes interfere with the functioning of other applications, including Thunderbird. When The Best detects a potential threat in an email, it may prevent Thunderbird from accessing or displaying the email, causing inconvenience for users.
Fortunately, there are simple solutions to troubleshoot this problem and ensure that Thunderbird and The Best work together seamlessly. One solution is to adjust the settings of The Best to allow Thunderbird to access emails without interference. This can be done by adding Thunderbird to the list of trusted applications within The Best’s settings. By doing so, The Best will recognize Thunderbird as a trusted program and will not block or interfere with its functioning.
Another solution is to disable the email scanning feature within The Best. While this feature is intended to provide additional security by scanning incoming and outgoing emails for potential threats, it can sometimes cause issues with Thunderbird. By disabling this feature, you can eliminate the conflict between Thunderbird and The Best, allowing your email client to function properly again.
Troubleshooting Thunderbird The Best Issue
If you are encountering problems with Thunderbird and The Best antivirus software, you are not alone. Many users have reported compatibility issues between these two programs, leading to email security and functionality problems.
The main problem is that The Best’s real-time scanning feature often conflicts with Thunderbird’s email retrieval process. This conflict can result in Thunderbird not being able to properly connect to your email server, or messages not being downloaded or sent.
To resolve this issue, you can try the following solutions:
- Temporarily disable The Best’s real-time scanning while using Thunderbird. This will allow Thunderbird to connect to your email server without interference from the antivirus software.
- Add Thunderbird as an exception in the The Best antivirus settings. By doing so, The Best will not scan Thunderbird’s email traffic, ensuring smoother operation.
- Update both Thunderbird and The Best to their latest versions. Software updates often include bug fixes and improvements that can resolve compatibility issues.
- Consider switching to a different antivirus software if the problem persists. There are many reputable antivirus programs available that do not have conflicts with Thunderbird.
Remember to always prioritize your computer’s security by having an active and reliable antivirus program. However, if you experience issues with Thunderbird and The Best antivirus, following these troubleshooting steps should help resolve the problem and ensure that your email software functions smoothly.
Thunderbird Not Opening with The Best
If you are experiencing issues with opening Thunderbird while having The Best security software installed on your computer, you are not alone. This is a common problem faced by users who have both The Best antivirus and Thunderbird email software.
The issue typically occurs when the The Best software conflicts with Thunderbird, causing it to not open or function properly. This can be frustrating, especially if you rely on Thunderbird for all your email communications.
To troubleshoot and resolve this problem, you can try the following solutions:
- Temporarily disable The Best: Disable the The Best antivirus software temporarily to see if Thunderbird opens without any issues. If it does, you may need to adjust your The Best settings to allow Thunderbird to function properly.
- Update The Best: Make sure you have the latest version of The Best installed on your computer. Sometimes outdated software can cause conflicts with other applications.
- Exclude Thunderbird from scanning: Add Thunderbird as an exclusion in The Best’s scanning settings. This will prevent The Best from scanning Thunderbird files, which can sometimes cause issues.
- Check for conflicting plugins: Disable any plugins or extensions in Thunderbird that may be conflicting with The Best. Sometimes, third-party plugins can interfere with the antivirus software.
- Reinstall Thunderbird: If none of the above solutions work, you may need to reinstall Thunderbird. This can help resolve any software conflicts that may be causing the problem.
Remember to restart your computer after making any changes to ensure they take effect. If none of these solutions work, you may need to contact the The Best support team or seek further assistance from Thunderbird’s support forums or community.
By following these troubleshooting steps, you should be able to fix the issue of Thunderbird not opening with The Best. It’s important to ensure that both your antivirus software and email software work together properly to provide a secure and efficient email experience.
Thunderbird Freezes when The Best is Running
If you are facing issues with Thunderbird freezing when The Best antivirus is running, you are not alone. Many users have reported this problem, and it can be quite frustrating when you cannot access your email properly. Here are some troubleshooting steps and solutions you can try to fix this issue:
1. Disable The Best Real-Time Scanning
Mcafee’s real-time scanning feature may be conflicting with Thunderbird, causing it to freeze. You can try disabling this feature temporarily to see if it resolves the issue. To disable real-time scanning:
- Open The Best Antivirus.
- Navigate to the settings or preferences.
- Find the Real-Time Scanning option and turn it off.
2. Exclude Thunderbird from The Best Scans
If disabling the real-time scanning does not work, you can try excluding Thunderbird from The Best scans. To do this:
- Open The Best Antivirus.
- Navigate to the settings or preferences.
- Find the Exclusions or Excluded Files option.
- Add the Thunderbird program directory or executable file to the exclusion list.
By excluding Thunderbird, you are telling The Best not to scan Thunderbird files, which may help prevent any conflicts that lead to freezing.
3. Update Thunderbird and The Best
Make sure you have the latest version of Thunderbird and The Best antivirus installed. Outdated software can sometimes cause compatibility issues and lead to freezing problems. Update both applications to their latest versions and check if the problem persists.
4. Uninstall and Reinstall Thunderbird
If none of the above solutions work, you can try uninstalling Thunderbird and then reinstalling it. This can help fix any corrupted files or settings that may be causing the freezing problem. Remember to back up your Thunderbird profile before uninstalling to avoid losing any important emails or settings.
Hopefully, one of these solutions will help you resolve the Thunderbird freezing issue when The Best antivirus is running. If the problem still persists, you may want to consider contacting Thunderbird or The Best support for further assistance.
Thunderbird Crashes after Installing The Best
One common problem that users encounter after installing The Best security software is that Thunderbird, their email client, crashes. This can be frustrating and can interrupt your ability to send and receive emails. Fortunately, there are some simple solutions you can try to troubleshoot and resolve this issue.
1. Adjust The Best settings
Oftentimes, the issue lies in the settings of your The Best antivirus software. To fix this, open the The Best program on your computer and navigate to the security settings. Look for any options related to email clients or email scanning, and disable them. This should prevent The Best from interfering with the operation of Thunderbird.
Note: Disabling email scanning might decrease the security of your email, so proceed with caution and make sure to follow other safe email practices.
2. Update Thunderbird and The Best
Another possible solution is to make sure you have the latest versions of both Thunderbird and The Best software. Check for any available updates and install them. Sometimes, compatibility issues arise between older versions of Thunderbird and The Best, and updating both software can resolve these issues.
Remember to perform regular updates to keep your software and antivirus protection current.
If the problem persists, you may need to seek further assistance from technical support or the Thunderbird or The Best forums. They can provide more specific troubleshooting steps based on your system configuration.
Remember to always have a backup of your important emails and files, and consider alternative email clients or antivirus software if the problem continues.
By following these steps, you should be able to fix the Thunderbird crashing problem after installing The Best, allowing you to use your email client without interruptions caused by antivirus software conflicts.
Thunderbird Slow Performance due to The Best
If you are experiencing slow performance in Thunderbird, one potential cause could be The Best, a popular antivirus software. The Best is known for its strong security features, but it can sometimes conflict with Thunderbird and slow down its performance.
When The Best scans your email messages in Thunderbird, it adds an extra layer of security, but this scanning process can also take up a significant amount of system resources, causing Thunderbird to run slowly.
Identifying the Problem
To confirm if The Best is the cause of your Thunderbird performance problem, you can try disabling the antivirus temporarily. Open the The Best software and look for options to disable or turn off the antivirus scanning features.
Once The Best is disabled, check if Thunderbird’s performance improves. If it does, this confirms that The Best was indeed the cause of the slowdown.
Solution: Adjusting The Best Settings for Thunderbird
If you want to continue using The Best while maintaining Thunderbird’s performance, you can adjust some settings in the antivirus software to minimize the impact on Thunderbird.
First, open The Best and navigate to the settings or preferences section. Look for an option related to email scanning, and disable the option to scan incoming or outgoing email messages in Thunderbird. This way, The Best will still provide antivirus protection for other parts of your system, but it won’t slow down Thunderbird.
It is also recommended to exclude Thunderbird’s directory or folder from the antivirus scans. This will prevent constant scanning of Thunderbird files, improving its performance. Look for the “Exclusions” or “Scan Exclusions” settings in The Best and add the Thunderbird directory to the list of exclusions.
After making these changes, restart Thunderbird and check if the performance has improved. If the issue persists, you may need to consider alternative antivirus software that is more compatible with Thunderbird.
Note: It’s important to remember that disabling or modifying antivirus settings can potentially reduce the security of your system. Make sure you have other security measures in place to compensate for any changes made.
In conclusion, if you are experiencing slow performance in Thunderbird, especially when opening or sending emails, it could be due to The Best’s antivirus scanning. Try disabling or adjusting the antivirus settings related to Thunderbird to improve its performance.
Simple Solutions to Fix Thunderbird The Best Problem
If you are experiencing issues with your Thunderbird email program due to The Best antivirus software, there are a few simple solutions you can try to troubleshoot the problem. The Best is a popular antivirus software that can sometimes interfere with the normal functioning of Thunderbird, causing it to freeze, crash, or display error messages.
Disable Real-Time Scanning
One of the easiest solutions to fix the Thunderbird The Best problem is to disable the real-time scanning feature in the antivirus software. Real-time scanning constantly monitors files and processes on your computer, which can sometimes conflict with Thunderbird’s operation. By temporarily disabling real-time scanning, you can determine if it is the cause of the problem.
To disable real-time scanning in The Best, open the antivirus software and navigate to the settings or preferences section. Look for an option related to real-time scanning or file scanning and toggle it off. Restart Thunderbird and check if the problem persists.
Add Thunderbird to Exclusions
If disabling real-time scanning doesn’t resolve the issue, you can try adding Thunderbird to the exclusion list in The Best. This will prevent the antivirus software from scanning Thunderbird files and processes, reducing the chances of interference.
To add Thunderbird to the exclusion list, open The Best and go to the settings or preferences section. Look for an option that allows you to add exclusions or trusted applications. Browse for the Thunderbird program file (usually located in the Program Files folder) and add it to the list. Save the changes and restart Thunderbird.
Note: Adding Thunderbird to exclusions may slightly lower the level of security provided by The Best, so it is recommended to enable real-time scanning after troubleshooting the problem.
Update The Best and Thunderbird
If the problem persists, make sure that both The Best and Thunderbird are up to date with the latest software versions. Outdated antivirus software or email clients can sometimes cause compatibility issues, resulting in problems with Thunderbird.
Check for updates in The Best by opening the antivirus software and navigating to the settings or preferences section. Look for an option that allows you to update the software and follow the on-screen instructions.
To check for Thunderbird updates, open the email program and go to the Help menu. Look for an option that says “Check for Updates” or similar. If an update is available, download and install it.
By following these simple solutions, you can effectively troubleshoot and fix the Thunderbird The Best problem. If the problem persists after trying these solutions, you may want to consider contacting The Best support or seeking assistance from a professional.
Disable The Best Email Scan in Thunderbird
If you are experiencing a problem with The Best software interfering with your Thunderbird email client, there is a simple solution to troubleshoot the issue. The Best is a popular antivirus software that provides comprehensive security protection, but sometimes it can cause conflicts with other applications, such as Thunderbird.
To disable The Best email scan in Thunderbird, follow these steps:
- Open the The Best security software on your computer.
- Navigate to the settings or preferences section.
- Find the email scan option and click on it.
- From the email scan settings, disable the option to scan incoming and outgoing emails.
- Save the changes and exit the The Best software.
By disabling the email scan feature in The Best, you can ensure that it no longer interferes with your Thunderbird email client. However, keep in mind that this will also disable the email protection provided by The Best, so make sure you have an alternative antivirus solution in place to maintain your computer’s security.
If you continue to experience issues with Thunderbird or any other software, it may be worth contacting The Best support for further assistance. They can help troubleshoot any problems you may be having and provide guidance on how to resolve them.
Whitelist Thunderbird in The Best Firewall
If you are experiencing issues with Thunderbird due to The Best’s security software, you may need to whitelist Thunderbird in the The Best Firewall to resolve the problem. The Best is a popular antivirus software that can sometimes conflict with Thunderbird, causing issues with sending and receiving emails. Whitelisting Thunderbird in the The Best Firewall will allow the software to bypass any restrictions and function properly.
To whitelist Thunderbird in the The Best Firewall, follow these steps:
- Open the The Best Security software on your computer.
- Navigate to the Firewall settings.
- Locate the list of allowed applications or programs.
- Add Thunderbird to the list of allowed applications.
- Save the changes and exit the The Best Security software.
Once Thunderbird has been added to the whitelist, it should be able to function without any issues. If you continue to experience problems, you may need to troubleshoot further or consult with The Best support for additional assistance.
By following these simple steps, you can ensure that Thunderbird and The Best antivirus software work together smoothly, allowing you to enjoy a secure email experience without any disruptions.
Update Thunderbird to the Latest Version
If you are experiencing issues with Thunderbird due to the The Best software, one of the possible solutions is to update Thunderbird to the latest version. Updating the software can help troubleshoot any compatibility problems and ensure that you have the most up-to-date security features.
To update Thunderbird, follow these steps:
Step 1: Open Thunderbird
Launch the Thunderbird email client on your computer.
Step 2: Check for Updates
Click on the menu icon in the top-right corner of the Thunderbird window. From the drop-down menu, select “Options”.
Next, click on “General” in the left-hand sidebar. Then, scroll down to the “Thunderbird Updates” section and click on the “Check for Updates” button.
Step 3: Install Updates
If there are any available updates for Thunderbird, a pop-up window will appear. Click on the “Update Thunderbird” button to start the update process.
Wait for Thunderbird to download and install the updates. This may take a few minutes, depending on your internet connection speed. Please ensure that you have a stable internet connection during this process.
Step 4: Restart Thunderbird
After the updates have been successfully installed, restart Thunderbird to apply the changes. You can do this by closing the program and reopening it.
By updating Thunderbird to the latest version, you can resolve any compatibility issues with the The Best software. This simple solution ensures that you have the most recent version of Thunderbird with the latest security features and improvements.
Update The Best Antivirus Software
If you are experiencing issues with Thunderbird and The Best, it’s important to keep your antivirus software up to date. Outdated antivirus software can often cause compatibility issues and create problems with email clients like Thunderbird.
To update your The Best antivirus software, follow these simple steps:
- Open the The Best antivirus program on your computer.
- Click on the “Update” or “Check for updates” option.
- Wait for the software to check for any available updates.
- If updates are found, click on the “Install” or “Update” button to start the update process.
- Wait for the updates to download and install on your computer.
- Restart your computer if prompted to complete the update process.
By keeping your The Best antivirus software updated, you can ensure that it is equipped with the latest virus definitions and security patches. This will help protect your computer and also minimize any compatibility or performance issues with Thunderbird and other email clients.
Remove Conflicting Thunderbird Add-ons
If you are experiencing problems with Thunderbird when The Best antivirus is installed, it may be due to conflicting add-ons. In such cases, it is recommended to remove the conflicting add-ons to troubleshoot the issue.
To remove conflicting Thunderbird add-ons:
1. Open Thunderbird
Launch Thunderbird on your computer.
2. Access the Add-ons Manager
Click on the menu icon in the top right corner of the Thunderbird window and select “Add-ons” from the dropdown menu.
3. Disable or Remove Conflicting Add-ons
In the Add-ons Manager, navigate to the “Extensions” or “Plugins” section. Look for any The Best-related add-ons and click on the “Disable” or “Remove” button next to them.
Note: Be cautious while removing add-ons and make sure you are only removing the conflicting ones related to The Best.
4. Restart Thunderbird
After disabling or removing the conflicting add-ons, restart Thunderbird to apply the changes.
By removing the conflicting Thunderbird add-ons, you can resolve the compatibility issues between The Best and Thunderbird and ensure the smooth functioning of your email security solution.
Advanced Solutions to Resolve Thunderbird The Best Issue
If you are experiencing issues with Thunderbird and The Best software, specifically related to email security, there are some advanced solutions you can try to resolve the problem. The Best is a well-known antivirus software that offers robust security measures, but sometimes it can interfere with Thunderbird’s functionality and cause issues with sending or receiving emails. Here are some advanced solutions that can help you fix the Thunderbird The Best problem:
1. Disable The Best Email Scanning:
One solution is to disable the The Best email scanning feature. This feature scans incoming and outgoing emails for potential threats. However, it can sometimes cause conflicts with Thunderbird. To disable email scanning, open the The Best software and navigate to the Email Protection or Email Scanner settings. Look for an option to disable email scanning and uncheck the box. Save the changes and restart your computer. This should prevent The Best from interfering with Thunderbird’s email functionality.
2. Whitelist Thunderbird in The Best:
If disabling email scanning doesn’t resolve the issue, you can try whitelisting Thunderbird in the The Best software. This will ensure that Thunderbird is trusted and not blocked by The Best’s security measures. To whitelist Thunderbird, open the The Best software and go to the Firewall settings. Look for an option to add an exception or whitelist a program. Browse your computer for the Thunderbird executable file (usually located in the Program Files folder) and add it to the whitelist. Save the changes and restart your computer. This should allow Thunderbird to function properly without any interference from The Best.
3. Configure Thunderbird Firewall Settings:
In some cases, Thunderbird’s own firewall settings may be causing conflicts with The Best. To resolve this, open Thunderbird and go to the Options or Preferences menu. Look for the Security or Firewall settings and temporarily disable any firewall features. Save the changes and restart Thunderbird. If the issue is resolved, you can try re-enabling the firewall settings one by one to see which one is causing the conflict. You may need to consult Thunderbird’s documentation or support for more specific instructions on configuring its firewall settings.
By following these advanced solutions, you should be able to resolve the Thunderbird The Best problem and regain normal functionality of your email client. If the issue persists, it’s recommended to contact Thunderbird’s support or The Best’s support for further assistance.
Reinstall Thunderbird and The Best
If you are facing a security issue or experiencing problems with your antivirus software like The Best while using Thunderbird for your email, a feasible solution is to reinstall both Thunderbird and The Best on your system. Reinstalling the software can help troubleshoot any underlying issues and ensure that both programs are properly configured and functioning.
Steps to Reinstall Thunderbird and The Best:
1. Uninstall Thunderbird and The Best:
Before reinstalling the software, it is essential to uninstall Thunderbird and The Best from your system. To do this:
- Go to your computer’s Control Panel.
- Select “Add or Remove Programs” or “Programs and Features.”
- Find Thunderbird and The Best in the list of installed programs.
- Click on each program and select “Uninstall.”
2. Download the latest versions:
After uninstallation, visit the official websites of both Thunderbird and The Best to download the latest versions of the software. Make sure to download the appropriate versions compatible with your operating system.
3. Install Thunderbird:
Once the Thunderbird setup file is downloaded, open it and follow the installation wizard to install Thunderbird on your system. During the installation process, you may be prompted to customize specific settings according to your preferences.
4. Install The Best:
Similarly, open the downloaded The Best setup file and follow the installation wizard to install The Best antivirus software on your system. Pay attention to any additional options or settings that may be presented during the installation process.
Conclusion
Reinstalling Thunderbird and The Best can be an effective solution for fixing security issues and antivirus software problems. By following the steps outlined above, you can ensure that both programs are properly installed and configured on your system, providing a secure email environment and robust protection against online threats.
Disable The Best Real-Time Scanning
If you are experiencing issues with Thunderbird and The Best antivirus software, one possible solution is to disable the Real-Time Scanning feature on The Best. This can help troubleshoot any conflicts between the two programs and ensure smooth functionality.
The Best Real-Time Scanning is a security feature that constantly scans files and programs on your computer for potential threats. However, sometimes it may interfere with other software, such as Thunderbird, causing problems and disruptions.
To disable The Best Real-Time Scanning, follow these steps:
- Open the The Best antivirus software on your computer.
- Locate the settings or preferences section, which may be accessed through the main dashboard or a menu.
- Look for the “Real-Time Scanning” or “Real-Time Protection” option in the settings.
- Click on the option to disable the feature.
- A confirmation dialog may appear asking for your permission to disable the Real-Time Scanning feature. Confirm your choice.
- Restart your computer to apply the changes.
By disabling the Real-Time Scanning feature, you are temporarily turning off the constant monitoring of files and programs on your computer. It is important to note that this may decrease the level of security provided by The Best, so it is advisable to re-enable the feature once you have resolved the Thunderbird problem.
If you continue to experience issues with Thunderbird and The Best, you may need to consider other troubleshooting steps or contact The Best support for further assistance.
Exclude Thunderbird Files from The Best Scans
If you are facing a security issue with your Thunderbird email client, and your antivirus software, The Best, is causing the problem, there is a simple solution to troubleshoot the issue.
The Best, like other antivirus programs, scans your computer files regularly to ensure there are no harmful files or malware. However, sometimes it may mark certain Thunderbird files as potentially unsafe, which can cause problems with your email client.
To fix this problem, you need to exclude Thunderbird files from The Best scans:
- Open The Best: Locate the The Best antivirus icon on your system tray or desktop and double-click to open the program.
- Access Real-Time Scanning: In The Best, navigate to the settings or preferences section, and look for the option called “Real-Time Scanning” or “Scan Settings”. Click on it to access the scanning settings.
- Add Thunderbird to Exclusion List: In the scanning settings, you will find an option to exclude certain files or folders from the scans. Look for an option like “Add Exclusion” or “Exclude Files”. Click on it to add Thunderbird to the exclusion list.
- Locate Thunderbird Files: In the file browser window that appears, locate the Thunderbird application files. These files are usually located in the “Program Files” or “Applications” folder on your computer. Select the Thunderbird folder and click on “OK” or “Add” to add it to the exclusion list.
- Save Settings: After adding the Thunderbird files to the exclusion list, click on “Save” or “Apply” to save the settings and exit the scanning settings menu.
By excluding Thunderbird files from The Best scans, you are ensuring that your antivirus program will no longer consider these files as potentially harmful, thus eliminating any security problems they may have caused.
Remember to periodically check for updates to your antivirus software and Thunderbird email client to ensure you have the latest security patches and features.
Disclaimer: It’s important to have antivirus software installed to protect your computer from potential threats. However, if it disrupts the normal functioning of certain applications like Thunderbird, it may be necessary to make adjustments to the antivirus settings.
Contact Thunderbird and The Best Support
If you have followed the troubleshooting steps mentioned above and you are still experiencing problems with Thunderbird and The Best software, it may be time to reach out to the support teams for assistance. Both Thunderbird and The Best have dedicated support channels that can help you resolve any issues you are facing.
Thunderbird Support
To get in touch with Thunderbird support, you can visit their official website and access their support page. Here, you will find various resources such as FAQs, forums, and user guides that can help you troubleshoot common Thunderbird issues. If you are unable to find a solution, you can also submit a support ticket or contact their support team directly via email or phone.
The Best Support
If you believe that The Best is causing issues with Thunderbird, it is recommended to contact The Best support for further assistance. The Best provides comprehensive customer support through their website, where you can access helpful resources such as FAQs, guides, and forums. If you need personalized assistance, you can contact their support team through email, phone, or live chat.
When contacting the support teams, make sure to provide as much information as possible about the problem you are facing. This will help them understand the nature of the issue and provide you with the most suitable solution. It is also advisable to mention that you are experiencing compatibility issues between Thunderbird and The Best software, as this will help them address the problem more effectively.
Remember, reaching out to the support teams is often the best way to resolve complex software or security issues. They have the expertise and knowledge to guide you through the troubleshooting process and provide you with a solution that is tailored to your problem.
Вопрос-ответ:
Why is Thunderbird not working with The Best?
There might be a compatibility issue between Thunderbird and The Best. Updating both software solutions to their latest versions might fix the problem.
How can I fix the Thunderbird The Best problem?
First, try updating Thunderbird and The Best to their latest versions. If the problem persists, you can try disabling the The Best email scanning feature or switch to a different antivirus program.
Is there a way to disable email scanning in The Best without uninstalling it?
Yes, you can disable email scanning in The Best by opening the The Best Security Center, selecting “Email & Web Security”, and then unchecking the “Scan incoming and outgoing email messages” option.
Are there any alternative antivirus programs that work well with Thunderbird?
Yes, there are many alternative antivirus programs that are known to work well with Thunderbird. Some popular choices include Avast, AVG, and Norton. It’s always recommended to do some research and choose an antivirus solution that fits your needs.
Is it necessary to have an antivirus program for Thunderbird?
While Thunderbird does have basic built-in security features, it is still recommended to have an antivirus program for added protection. Email attachments and links can be potential sources of malware, so having an antivirus program helps ensure that your computer is safeguarded against any threats.
How can I fix the Thunderbird The Best problem?
To fix the Thunderbird The Best problem, you can try disabling the The Best add-on in Thunderbird. To do this, go to the Thunderbird add-ons menu and locate the The Best add-on. Then, disable or remove the add-on and restart Thunderbird.