@Erik Groothuijzen - Erik, you need to look within your Linux Mint first for an application, before you go downloading other options, or you will likely hose your system.
On Thunderbird, it
already had v115 installed when you first installed it, you did not need to go and find a tar.
If you had clicked the menu button at bottom left, and then clicked Internet you would have seen that.
You need to re-train your methods, if you will let us help you.
You also need to make friends with Synaptic Package Manager, and Timeshift.
Both of these are already installed on your Linux Mint.
Wizard