Bagus

Freedom

It used to be the best for firefox since I can enable the proxy to ONLY certain website. Now it does not work anymore, and no other addon can do that.

I used it to open reddit only.

ok

Worked twice, now I am going to miss part 3 of Wim Hof freeze the Fear.

Useful most of the time but lately only one proxy works and its one of the ones from the Netherlands. All the others do not work in the slightest.
Edit: Now NONE OF THEM WORK. And their support line refuses to reply.
Edit2: The support line did reply, but they're useless and basically confirming that they don't care unless you're a paying customer.

fast and clear

всё только за деньги

https://www.anonymox.net/en/gettingstarted-firefox

Simple, easy to use and can make different setting for each site. last one is very important because I only need it for some site.