From about two or three weeks ago, I found that whenever I start Firefox and connect to VPN, it is fast for the first 5 minutes then becomes terribly slow beyond, and it happens very constantly. There is not the same problem on Chrome. I've contacted with the support service but no suggestions help (request #4257080). I believe it is the problem of the Firefox extension itself.

(update 2023/1/30)
It seems the problem has been fixed.

(update 2023/2/1)
Nah... problem's back, disappointed. I'm gonna use another VPN.

It worked just fine and recently(2023/1) the speed is down to like 56k modem connection. Reported this issue to the customer service and the answer I've got is "Sorry, there is no fix for extensions" And all I can do is just to endure this until I give up or pray for things going well. GJ Surfshark.
以前都正常運作但最近(2023/1)慢到簡直要吃屎，去跟客服說得到的答案是抱歉這插件沒修復方法。所以我只能忍耐。使用這之前請三思
この前に問題なく使ってたが最近(2023/1)のネットスピードはくそくらい遅くなったのでカスタマーサービスと連絡したら「すみません、修復の方法はない。」と言われた。我慢しかないと同然の答えに呆れてどうしようもないの自分がここにいる。このアプリを使う前によく考えないと痛い目にあうよ。

update! still not working on firefox!!! boooooo! horrible. it was such a great vpn. The Firefox extension is broken. The VPN service works correctly on the desktop app and other browsers, but on Firefox the speeds are horrendous and there are frequent errors (proxy authentication error, not logged in error when logged in, general unresponsiveness.)

The Firefox extension is broken. The VPN service works correctly on the desktop app and other browsers, but on Firefox the speeds are horrendous and there are frequent errors (proxy authentication error, not logged in error when logged in, general unresponsiveness.)

Не работает в РФ, верните деньги за подписку на 2 года. Проблема массовая, набрали денег и теперь занимаются отписками, проблему не решают.

Internet connection is so slow when VPN is used, but it works perfectly fine on Edge so please fix it on firefox please.

The worst update ever!!! Proxy error all the time....

Не работает в РФ от слова "совсем", где-то примерно как месяца два. Поддержка морозится, говорят устанавливать только отдельно на устройство и будет работать. По ходу, расширение накрыл РКН, т.к. ближайший для России сервер был сначала в Грузии, а потом стал в Украине. Делайте выводы. Не рекомендую к установке. Средства не вернуть уже.

Dosn't work as an extension, even can't login

I JUST WONDERED How a person would be crazy to creat app that their website is filtered, so how i shoud creat account ?
dosnt work in iran

non capisco perchè non sono presenti versioni aggiornate, dato che dal sito ufficiale dovrebbe far scaricare la 3.18. Tra l'altro avevo scaricato la 3.17 ma ora è scomparsa

没用

проблема с поиском на некоторыx сайтаx, если плагин включен

endless login. Unable to log into the account - endless rotation of the wheel.