It's pretty bad... The extension indicates being connected when it's not. (Always verify with a site that displays your IP) To even get it to work after opening a window requires manually disconnecting and reconnecting to get it to connect. On top of that, it's super buggy and poorly written - taking seconds to just load the ui after the icon is clicked. I'd expect this type of thing from a free extension, but not from a paid service. I had high hopes, but don't waste your time with this extension. My advice: Find a VPN provider that actually takes some pride in the code they release.

Stable, easy to use.

The VPN itself is great but the firefox add-on feels a bit buggy at times.

The firefox plugin won't allow both username and password to the entered ff ubuntu 18.04 FF 61.0.1

It's the only one i have found that does the job!

Wanted to change location but the extension shows a blank box after login. Please fix it!

I like the service for android and IOS but the Linux experience has been poor, particularly this add-on which closes itself whenever you try to select the password box, making it impossible to log in. Very unimpressed.

I have no idea how to use this firefox android addon. how about some instructions??

Okay, a little slow sometimes

Almost unusable on Firefox while on other browsers it works okay. There are 3 MAJOR issues on Firefox:
1. When you click on extension icon it takes around 3 seconds for UI to show up. This is extremely annoying even more because of other bugs that are forcing you to interact with extension more then you need to (will explain it now).
2. When you finally connect to server and after you restart Firefox NordVPN icon will be green which indicates that proxy connection is established. However that is not true, you are not REALLY connected although extension is suggesting that. You have to click on icon (and wait 3 seconds), disconnect (3-5 seconds) and finally reconnect (3-5 seconds). So if you want to use this extension on Firefox, you have to do this every time you start Firefox.
3. Extension won't even open UI in private mode.

This is a paid service and this extension is almost unusable, forcing me to leave 1 star review. I wouldn't recommend it even if it was free, at least not on Firefox.

Trop Dah

One of the few services I pay. Works flawless. Works as intented.

I cant login

It works on other browsers, but for some reason it isn't working on Firefox, very disappointing.

ubuntu 18.04 Pop, running openvpn with NordVPN and it's a crapfest. Even after Nord configuration options, nameservers, connections to their VPN servers drop frequently and OpenVPN with no kill switch leaves you exposed unless you happen to notice the connection drop.

The firefox plugin won't allow both username and password to the entered, so there's no way to login which could only matter if the system was reliable.

Fedora 28 and Firefox 61 - it works, but the UI performance is absolutely dreadful - on an OC'd Ryzen 5 1600 with 3000Mhz DDR4 RAM it takes 5-6 SECONDS for UI to show up after it is clicked. Similar to show flags on the country list. Firefox often offers me the choice to kill hanged-up js script that addon is using.
On the, ekhm, rival browser the UI performance is significantly better, but honestly, still slow. Like 1,5s for UI to show up, instead of 6s on Firefox.

Running Ubuntu 16.04 and Firefox - VPN does not auto-connect correctly and needs to be disconnected and reconnected to work. Not sure what happened as this wasn't a problem on previous versions of this add-on.

Does not work on Ubuntu (immediately closes when focusing on password field), on Windows it is blank 75% of the time.