I installed @Storm's Anubis icon set and applied it (Which I really like the style and design of, by the way; Check it out). This always leads to testing of seeing which icons show up and which do not. Usually, I just open the app menu and slowly browser through "All Software."
This time, I was noticing some oddities. The most notable was a tool or utility named filemanager-Actions
which bore the Nautilus File manager Icon. I launched it; It does allow many options and settings for Nautilus, apparently. I clicked Help > About
trying to suss out when I got this.
Here, it lists:
It also has the developer website listed. So, I clicked the link (Which I will not paste here). At this point, a suspicious link appeared. It performed a captcha, including the message "Click Allow to prove you are a human."
That is highly unusual behavior. The "Allow" is for accessing the web browser and showing your notifications. Captchas generally perform a simple test, not an invasive demand that you grant access to your computer.
I did a bit of digging and found that this developers website has already been flagged for Phishing.
All the credentials seem to match the Gnome developer - but even if I apply benefit of the doubt that they are not phishing data, using captcha to demand access to your browser is very inappropriate and unethical.
Stay alert.
Installing it may link to a user installing Nautilus Extensions.