Мне требовалось только зайти на сайт, чтобы скачать нормальный VPN браузер, доступ к сайту которого был ограничен. Скорость, действительно, плохая (для бесплатной версии), но со своей задачей справился. Для расширения, которое устанавливается в пару кликов - хорошо.

https://xn--4gq62f52gdss.art/#/register?code=Gc3BxLnR

+ Testing the addon was fast
- failed in any instance -> not able to connect from china mainland

Doesn't work

Working well! The premium servers are way are faster than free ones

убогое расширение. мучался несколько месяцев. лучше бы оно всегда не работало, а так то пару дней нормально, то пол часа плясок с переключением серверов. Работа низкого качества. Денег не стоит.

The addon window loads way too slow.
spent 1 minute trying to connect to any of the 3 free servers but happened. No connecting, just the little animation going on and on till the end of time. Trash

Very very slow

垃圾

Installed this, and doesn't work, only made my firefox 5x slower, had to register to this, to "unlock" usa, which also doens't work, as the website I tried seeing, still said: you're in Spain and this website only works in the USA.
so in my experience, it does not work at all. (and yes, I restarted firefox completely after installing this plugin. (and twice just to be sure, but still, doesn't work)

also, super bad: no way to remove your account after registration with them.
horrible website to be honest if you cannot even remove your account there.