Here is a tip to save time while sending emails using Mozilla Thunderbird.
If you compose an email with Thunderbird, you do not come back to the inbox immediately, unless the email is sent which take a few minutes.
A solution to this is to use the add-on Sendtools. Once you install this, your emails are sent in the background and you are immediately returned back to your inbox.
This also allows you to schedule sending emails at a specific time.
Note: I have tested this with the latest Mozilla 2.0 but sendtools wouldn’t install as it checks for version compatibility and doesn’t install if you have a newer version.
Here is a fix. After you download sendtools, you will find a .XPI file.
Right click on the .XPI, this will open in your archive/zip application.
Now you will see a install.rdf, open this file with any text editor.
Change the max-version to 2.0.*
Save and close the file.
Save and close the archive.
Now install sendtools, it should work correctly.