Hellofeedex
that is if i understand partially your question(s)
if you have just installed Trisquel mini you need to update your system
$sudo apt-get update && sudo apt-get upgrade
or with Synaptic Package Manager
if you cannot open Synaptic: https://trisquel.info/en/issues/13803
run
$sudo synaptic
and make update
Concerning Midori
(there's is some instability with Midori at the moment and it crash's very
often while handling cookies)try to see if in Private Mode it's better?
To see what is happening open Midori with your Terminal
$midori
and you will be able to read the messages when it crash.that you copy paste
here