Browser started popping up unprovoked "promo-newtab.club" links which tried to redirect to Russian sites.

This plugin per grep below was the culprit found via the GUID in about:debugging#/runtime/this-firefox

$ grep -r 'promo-newtab' .
grep: ./cookies.sqlite: binary file matches
grep: ./synced-tabs.db-wal: binary file matches
grep: ./places.sqlite: binary file matches
grep: ./synced-tabs.db: binary file matches
grep: ./places.sqlite-wal: binary file matches
grep: ./permissions.sqlite: binary file matches
grep: ./cookies.sqlite-wal: binary file matches
grep: ./bounce-tracking-protection.sqlite: binary file matches
grep: ./storage/default/moz-extension+++38d14c55-6a78-4896-96da-4ce7e7551fba^userContextId=4294967295/idb/3647222921wleabcEoxlt-eengsairo.sqlite: binary file matches

Pointless because I have to look at my phone anyway to approve the request.

You still need to manually approve on the mobile app each time you need 2FA.

I wanted 2FA authentication from my desktop, so I don't always need to grab my phone, log in, go to home screen, open the app, approve, BLAH BLAH. Still the same huge hassle with this extension.

For those people saying "bUT yoU wIlL gET HAcKeD!!!11!!", no, if this was an actual 2FA-extension then you would be able to set up your PC/Browser to be the second authentication.

Requires a mobile application

You need to approve the code on your phone, and then it doesn't work anyway. The extension is a complete waste of time.

Absolutely pointless extension, it sends an alert to your phone to approve the copy of the authenticator token. What a complete waste of time it was setting up all my codes in 2FAs when Ente has a desktop app that I can copy and paste the codes from on the computer directly without the use of "approving" a code copy to the browser on a device that I had to authenticate with the 2FAs app anyway. UTTERLY BEYOND STUPID. COMPLETE WASTE OF TIME

Spent a few of hours importing tokens on my phone, only to find that the browser extension does not operate independently. I want something to sync token data to the computer so I DON'T NEED MY PHONE. If I wanted to deal with the phone when logging in through the browser, I would JUST USE THE PHONE.

Constantly makes Firefox become unusable with lag .

Slows down firefox

Slows down Firefox. Had to disable. Please fix!

Constantly getting notices about it causing slow downs

Similar experience to other recent reviews, this app currently slows down the browser. Disabling until a fix is applied.

I keep getting notices from Firefox saying this extension is slowing Firefox down. But aside from that, the extension is quite pointless. You can't manage your tokens from the extension, and you still have to open the app on your phone to approve the token request.

All this does is provide a button that sends a message to your phone. You still have to open the phone app and select a code to send.. and by the time you've faffed around with that, the token has timed out.

Utterly pointless and actually worse than just using mobile to start with.

Only works on the 2FAS demo page. Any other page the request doesn't reach the app.

Useful, but severely slows down some web pages

After watching the video, this extension is slower than freaking typing the code. Additionally, it doesn't even work for Firefox (Inactive Tab, please refresh this tab to use the 2FAS browser extension). I was expecting to be able to log into websites without having my phone on me, but alright one star will do.