[Trisquel-users] Disconnect? Internet privacy?

[tirifto]

Hello!
I have been trying to make my internet life a bit more spying-resistant. I  
figured that the next best option after Tor and similar would be Firefox (and  
derivatives) with add-ons. I always install HTTPS Everywhere, uBlock,  
Self-destructing cookies and NoScript for that. Some time back I was also  
using Disconnect, since it seemed very nice. But recently I visited their  
website (https://disconnect.me/) and found out that they have a free version  
and a premium version with added functionality, which is also commercial.  
That worries me, because although commercial software can be libre, I'm not  
sure that's the case here. Can anyone confirm if the Disconnect Premium  
add-on is proprietary? If so, do you know any similar software to Disconnect?  
I want to be safe, but I'm hesitant about supporting a company that produces  
proprietary software.
Thank you!