This add on, is constantly having problems with Firefox, works fine in other browsers like Vivaldi, it was working on Firefox, suddenly when I connect, the addon on Firefox, it begin to give me this message to all sites:
"
Secure Connection Failed

An error occurred during a connection to google.com. Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem."

NOTE: I don't have the Proton VPN client working on windows, just using add on with browser.

The inability to setup profiles, even as a paid subscriber, makes this far less useful than it should be. When you want to bypass your country's censorship the last thing you want is a default connection to servers in your country. Yes, you can manually change it, but this rather undercuts the purpose and convenience that auto-connect brings. Fastest connection to not my country is in the desktop app and I want to see it here too.

I think a VPN extension only really needs ONE feature: quick-connect to a previously favorited country.

It is ridiculous that ProtonVPN does not have this.
I would take ANYTHING:
- A way to pin/favorite countries or servers
- A second button next to Connect that
- An option in the settings for what happens when I left click the extension
- create a hotkey to auto-connect to my favorites

I've only ever EVER used it to connect to a different country. But if I don't manually choose it in the list, then it will choose MINE. Why?! It's basically useless.

And I specifically only ever use Japan 99% of the time, and the US in the remaining 1%.
(I suspect a great majority of people use it similarly. Mostly one country.)

Both of which—because the list is in alphabetic order—I literally cannot even simply scroll down to!
Japan takes about 4 wheel turns, and the US takes 8.

So, evidently, I instead search for them. Just typing J or U is enough.
And THANKFULLY the search input is automatically focused. This is why the app gets 2 stars, not 1.

Great when it works. I constantly lose connection when trying to stream content on my browser. When I disconnect from the extension I have no connection issues. I have two server locations close to me and I try to switch when my connection slows down. But, this doesn't seem to help.

The free extension is frustrating, time consuming, does not choose the same country server as the PC installation & changes your PC local time to that of the server. Tech support wants pics & all the hairy details to solve simple, common problems. With every biz wanting fee for service, the public is getting nickled & dimed to death to give a CEO gas for their Bentley!

This extension can be good or useless.
the issue is it automatically connects you to a server, they say it use the fastest one but actually its random. for me for example netherland and romani servers works good but it auto connects me randomly to USA and Poland which do not work so i have to press the change btn a lot of times to randomly get netherland or romani. the system actually sucks it didnt used to be this way

電腦自休眠或睡眠喚醒後 chrome 版會自動重新連線，但 firefox 版只會是斷線而且連線狀態還顯示正常卻無法上網。

Seems that Proton is not checking their Proxy LetsEncrypt Certificates. Therefore those Proxies are no longer available. The Proton VPN Firefox Extension could do a self check and provide better user experience in these situations. Does Proton doesn't have an automatic Flow at their servers?

Запускается один раз, дальше просто скидывает и выдает ошибку.

the best free VPN available but the only problem is it doesn't work like half of the time and gets stuck loading forever so I have to turn it off

When it works it's relatively good, though lacking in features compared to the full-fledged mobile or desktop apps (eg. no ability to configure profiles such as "stealth"). Unfortunately it very frequently fails to connect, or will say it's connected but you can't actually load any web pages. Sometimes the extension itself will even say that it is having trouble connecting and needs to be reinstalled which does work...until the same problem happens all over again. If it weren't for the reliability issues it would be an easy 4-star extension, with the 5th star being reserved for feature-parity with the mobile and desktop apps.

Firefox extension has no support for mobile.

This is a major issue for anyone looking to maintain their privacy on-the-go.

If I were to use a VPN app that connects me to my home server, I wouldn't have the option of using the native Proton VPN client as well.

The lack of mobile support for this extension is a serious issue.

It worked...once. One time. Since then it has done nothing but block all connections in Firefox, while other browsers work flawlessly with the same sites at the same time.

Disconnecting and reconnecting accomplishes nothing. I can't use this.

Latest update has me stuck on the "press Next and then Allow" screen for permissions, but there is no 'Next' button to click, and checking the add-on says all permissions are enabled.

Совершенно не работает с бесплатным аккаунтом

Undecided, I was wondering if there is a way to have split tunneling with just 1 tab on my firefox? So let's say I want Xbox website to see that I'm from USA but all my other tabs I want normal ISP service from UK, is that possible?

This doesn't seem to let me connect to USA, it's fixed to netherlands...

Update-
Would be nice if we could pick servers for free, not all of us are rich you know but thanks for giving something at least

Update 2-
I've had to remove a star because it is near unresponsive on windows 7 edition firefox 115extended build

This could be better if it worked properly and let me choose the server because others allow free server choice and more choices. If I like it I might buy it but not paying for subscription if its broke and doesn't let me test out free for long time like Avast antivirus has done since the 90s and I bought their product after a decade

It's buggy. At the beginning it would keep reconnecting and switching server all the time, though this was a few months ago so I don't know if that's fixed. But now I tried using it again and its supposed to reconnect when restarting browser but instead it gets stuck and doesn't connect. I had to disable the extension. Also if my internet goes out the vpn doesn't automatically reconnect I have to manually disconnect and connect again.

Incredibly flaky VPN connection. I can be happiliy browsing then things .... just ... stop. Then I look at the extension icon and it's a warning yellow. It's disconnected with no notification. So I click to reconnect and a notification shows "Connected", BUT the actual window still shows connecting, and more often than not that connection actually fails.

It's got nice features with split tunneling and so on, but way too frustrating to use regularly.

The Proton VPN service is good, but the extension is incredibly buggy. After every time I restart my browser, wake up my computer from sleep, or just randomly when it loses the connection, the only way to reconnect is to disable the extension then enable it again. Sometimes I have to do this multiple times to make it work.

The application is extremely raw!

1. There is no protection against IP tracking
2. There is no automatic reconnection in case of connection loss
3. Frequent disconnections