Will not work in Firefox 115
After the worst nightmare of Proton VPN disabling their desktop app for Windows 7 (that is precisely what needs it the most) I have attempted the work around of installing the addon to Firefox 115 and Eclipse r3dfox 151. I have pinned the addon icon to the toolbar but when I click on it I only get this swirling. Please advise or fix.

Doesnt work in firefox, tried removing extension then downloading again but now i cant even log in.
When i click Sign In, i get this new tab with Error Code: PR_CONNECT_RESET_ERROR

Give me serious problems in firefox/zen-browser
In the start it worked without no problems but after restarting it for the first time the extensions begans to having problems, i couldn't acess any website in the browser however the Wi-Fi was perfectly outside it, i couldn't even properly remove it i needed to enter troubleshooting mode and after go directly to the folder and remove it, by the way this only happens with ProtonVPN since windscribe works perfectly fine for me.

It says it's connected but doesn't actually load anything.

What happened? I recently renewed my subscription (not for the first time), and now I'm installing the extension on a new device, but it simply won't load (it just keeps loading forever!!!). Fix this! I've been experiencing issues for months now- I have to reconnect frequently, otherwise pages won't load. There are other issues, so I won't list them all here.

It sucks because I love Proton as a service and have been a paying customer for quite awhile, but this extension has always been completely broken on Firefox and it's derivatives. Everytime I first install it, the VPN works great. However, after I restart Firefox, it can never connect again and no website will load at all whenever it says "Connected". I need to reinstall the extension in order for it to work. It doesn't matter what fork I'm on, it doesn't matter what PC I'm on, and this has been happening for years. Works great on Vivaldi which you'd expect, given the extension is pre-loaded in the browser...but cmon I'm a Firefox guy and I'd like for this to work so I can use the VPN I'm paying for on my browser of choice. Until then, I'm not paying extra for it.

if you disconnect it does nothing, you stay online, and you will just be surfing with no protection until you notice it isn't connected anymore.

Junk VPN and waste of time.

даже не запускается расширение!

IPv6 is leaking when split tunneling is enabled. (include mode)

So there really is a widespread issue between Proton VPN and Firefox. I’m frustrated, I’m a premium subscriber on an annual plan, and I still can’t use the service in the browser that’s officially supported via the extension. We need an ETA! It’s been almost two months with no updates.

I find Proton's overall service quality, server speeds, and desktop application very successful; it's a genuinely good service. However, the browser extension (Zen, Vivaldi, etc.) unfortunately does not work properly on this computer.
The moment I click connect, the extension turns "green" (connected) within milliseconds, but no pages load and it throws a "Connection Timed Out" error. I have checked all network settings and DNS configurations on my system. While other competing VPN extensions work flawlessly on the exact same system, only Proton's extension gets stuck in this fake connection loop and fails to route traffic properly at the OS layer. This extension urgently needs an update to match the quality of the overall service. Until the extension is fixed, my rating is 1 star.

doesn't work it just makes my browser non functional, the app works fine though

I can't tell what's currently going on but starting since today I can't use the addon anymore. Every time I try to connect to a server the whole browser freezes and if I wait long enough, it crashes. I have to open Firefox in troubleshooting mode and remove the addon, because as soon as I enable it it tries to connect to a server and the browser freezes.

please stop spamming with review request

ich kann leider nur einen stern vergeben, das liegt daran, das man diese Free server nicht direkt auswählen kann. es gibt nur einen button schnelle verbindung und da wird dann mit einem freien server verbunden der dann aber lustigerweise nicht funktioniert, obwohl man verbunden ist, wenn man seine ip adresse kontrollieren möchte, kommt die vom nähe wohnort. tolle arbeit proton

Extension completely bricks FireFox. Fails to connect and remains stuck at which time, all functionality of the browser has stopped. Cannot open settings, cannot click the extension icon, nothing. Assumed it may have been the core secure function causing the hang up, so I did a refresh on FireFox. Reinstalled the extension and same issue happened. Had to do another refresh of FireFox.

Es de pago...

Needs an account to be usable...

Pops up annoying "please rate our app" spam, right when you need to adjust a setting.