Super easy to use and reminds me to make backups, I never lost a code.

Buat SRIKANDI gak bisa njir

I finally managed to do this with all my Browsers, Firefox, Chrome, Edge. THESE ARE THE STEPS I DID:
STEPS:
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1) I installed the "Authenticator by mymindstorm, Sneezry" Extension/Addon on all of my Browsers

2) On my browser I clicked the "authenticator Addon" at the top of the Addon/extensions Toolbar, and click the PENCIL (✏) icon, and then I clicked the (➕) icon.

**3) then I choose the [import QR images].

4) Now I take my android phone and I open the Authenticator app on my Phone, and I clicked on the 3 horizontal lines [≣] on the upper Left of the screen.

5) I clicked "Transfer Codes", then "Export Codes"

6) then in the "Select Codes" chose the codes you want to Export in a (QR code). Then click NEXT.

7) I make a screenshot of the QR code that I see on my phone screen.
This step is to send this screenshot of the QR code to your PC. (You can use any way you prefer to send it)

**8) Now Back to the Steps Number (2-3) In the PC browser, in the authenticator, I click the [import QR Images], and then the [Import QR Image Backup] button.

10) I find the screenshot of the QR code I brought from my Phone, I chose it and I will get a "SUCCESS" message on the screen.

That's it! I hope my steps will help many. ✌️😊

You kind of have to question the security of using an authenticator on the same device... but I needed to do that anyway and this served its purpose very well. I used it with Chromium originally, and it was very easy to transfer over to Firefox using the backup system. The fact that it's open source is amazing!

¡Extraordinario de no creer, para no depender de un maldito teléfono; eso era lo que estaba buscando, pero mejor escanear el código QR con la app de un móvil al mismo tiempo, para quedar con un respaldo escrito en piedra!

Great OPEN SOURCE extension. Does everything I need for creating TOTP. Haven't tried HOTP yet and although it has may extended features , not sure I would trust the cloud with my secure secrets. Comes with sensible warnings for you own security, follow them.

This was a great addon, sadly it seems to be discontinued. I wrote a similar one to realize the most of its features, but simpler and prettier. Check it out: Vault2FA

Backup nags and minor annoyances, otherwise perfect.

very high CPU usage for no reason

Love it. Can't imagine Firefox without it.