system
74
No problem at all, im glad to help.
Now only thing(s) to do are click Tools>extensions and choose any extensions you want for Thunderbird (optional)
Then click Tools>Themes and choose a Skin you want Thunderbird (optional)
After that, just keep Thunderbird up to date and you will be fine, this is done by goping to Tools>options>advanced then click ‘check now’ under updates.
–lee