You can also access Safe Mode in Thunderbird simply by clicking the Help menu and choosing the Restart with Add-ons Disabled option. Click the Continue in Safe Mode button to start Thunderbird in Safe Mode.

If you want, you can choose to Disable all add-ons or Reset toolbars and windows sizes.

The Thunderbird Safe Mode window will now appear.

Hold the Shift key on your keyboard and start Thunderbird.

If Thunderbird works without problems, the issue is caused by a third-party application or your configuration settings.

Select Safe Mode with Networking by pressing F5 on your keyboard.Īfter Safe Mode starts, you need to locate and run Thunderbird.

When your PC restarts, you’ll see a list of options available.

Now choose Advanced options > Startup Settings.

Your PC will restart and see three options on the screen.

Open the Start menu, click the Power button, hold the Shift key, and choose the Restart option.

How can I fix Thunderbird if it’s slow? 1. While this is not an exhaustive list, they represent the common triggers, but regardless of the cause, we shall show you the best fixes.

Corrupted msf files – These files may occasionally become corrupt, slowing down Thunderbird.

An outdated email client – Outdated apps will naturally display different faults.

Add-ons – You may want to try the client in safe mode to determine if it is an add-on problem.

So, if you were wondering why is Thunderbird freezing or is slow, here are the likely reasons. When your email client is slow, there could be a few reasons for this. We love to explore this problem and suggest the most efficient solutions for you on Windows 10. Despite its popularity and simplicity, some users reported that Thunderbird is slow on Windows 10. Thunderbird is a popular email client, and many Windows 10 users utilize it. You must have found this article because your Thunderbird client is slow here is all you should know.

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