


You may have to give administrator permissions to overwrite the older files with newer ones.Open the Thunderbird installation folder (usually C:\Program Files\Mozilla Thunderbird or C:\Program Files (x86)\Mozilla Thunderbird) and then press Ctrl+V to paste all the files here.Select all these files by pressing Ctrl+A inside the core sub-folder and press Ctrl+C to copy them. Now you will have all the Thunderbird files inside the core sub-folder where you extracted the Thunderbird package.Of course, the version number could be different. Then right-click on the Thunderbird package you downloaded in previous step and choose Extract to “Thunderbird Setup 38.0.1\”. Download and install 7-Zip archiver in Windows.Save the downloaded file somewhere on your hard disk. Visit the Thunderbird download web page and download the Thunderbird for your system and language.To do so, open the Task Manager by pressing Ctrl+Shift+Esc hotkey, select Thunderbird from the list and click on End Task button. First of all you have to close all the open instances of Thunderbird email client.Here is how you can manually update Mozilla Thunderbird in Windows: While it may look like a herculean task in the beginning, after reading this article you will realize that it can be done very easily. In these cases, you have to take matters into your own hands and manually update Thunderbird yourself. But sometimes the software installation gets botched up and does not allow you to update Thunderbird for some inexplicable reason. When a newer version of the popular email client Mozilla Thunderbird is released, it gets updated automatically in usual cases.
