Ever wonder when your system last updated a package when using a Debian or Ubuntu Linux? Let's check Firefox, for example. Type this:
```
grep -B4 firefox /var/log/apt/history.log
```
See https://www.cyberciti.biz/faq/debian-ubuntu-linux-find-package-installed-updated-date/ for more info.
@nixCraft Does not work in modern Ubuntu for the example given, because they have turned firefox into a snap
@elysegrasso no. In that case snap info firefox would give you the info