I self host vault warden, and the card auto-fill works ~70% of the time, and about half of those, the security code or the expiration doesn't work. EBay is the first one that comes to mind. I know it's the websites not following standards or conventions. It happens often enough that I remember the dates and codes now because I end up having to fill them in so often.
Protip: if a field doesn't populate, right click on it, then choose "copy name for bitwarden" (or something like that, not using FF in English), then add a custom field in the CC entry in bitwarden using that name in the clipboard. From now on on that specific page it will work
Please don't save stuff in your browser. It's very easy to rip those passwords and logins. If you must, keep it in a proper password manager like bitwarden or keepass.
All encryption is reversible, otherwise it wouldn't be encryption, it would be a hash. If you don't use a password, it's easy to reverse the encryption. If you do use a password, the maximum security with a brute force attack is 112 bits, which is pretty weak.
I recommend using a different password management service (which also handles credit card info), any password manager will be fine. I personally use Bitwarden, which uses 256 bits of encryption. That's pretty standard across password managers, so you're better of focusing on making a secure password.
That said, if you're only worried about credit card info and not storing passwords in Firefox, you're probably fine. Credit cards have a ton of protection, so if someone steals your card info, call your bank to dispute the fraudulent transactions and get a new card, it doesn't cost anything and has little hassle. Debit cards are another story, so I recommend just not using debit cards at all online.
Prepaid debit cards for the win. You need to buy something online? Open your banking app, transfer the amount to the card, pay. After that the card is empty and cannot be used to pay flr anything until you need it again.
That sounds like way more effort than a credit card, especially here in the US where transfers between banks take 2-3 days.
If you really want to avoid credit, you can lock your debit card and unlock it when you make a purchase. That's still annoying, but effective. But if you're responsible, there's really no reason to avoid credit, and you get rewards on top.
If it's a credit card then you should have pretty decent protection against fraud from the credit card company. I've had my card details stolen a few times (though never directly from my browser) and each time the credit card company has identified the fraud and reached out to me within minutes.
Now if it's a debit card, you should NEVER put those numbers into a computer. I only ever use my debit card to access the ATM, and even that is rare.
Sounds like a very US specific answer. In EU I only have a debit card and sometimes I have a hard time using it even myself because I need to pass 2fa and sometimes even that isn't enough if I'm on a new browser
Credit cards work the same everywhere*, it's not US-specific. My debit card actually only has my bank account number on it (but I think that actually is a Germany-only thing with our Girocards), so paying for stuff online is just a normal bank transfer, where yeah you do have to pass the bank's 2FA (unless it's via SEPA direct debit).
* mostly, my card requires me to confirm some charges in a special phone app, I don't think that's a thing everywhere since it's also fairly recent
That's only true for debit cards that aren't backed by master card or visa. When you use your debit card that is online, it's run as a credit card and has the same fraud protections.
I don't use debit cards anywhere for this exact reason. Don't even have one. When I have in the past, I've had the card linked to a seperate bank account with a small balance and no overdraft protection to limit damage. What I'd found though is that even when you tell the bank not to enable overdraft protection, they conveniently forget that and it stays possible to overdraft your account and get hit with fees,
I do the same strategy for crypto wallets, there's only a small amount in my browser wallet so that if somebody gets it, they can't steal much. From there you can have varying degrees of storage security for larger amounts: multi-sig so you have to sign transactions using multiple devices, hardware wallets, and cold storage.
I see all these articles about people getting thousands of dollars stolen from their crypto wallet and I'm like, you put $3,000 on the same computer you play Zombie Run 4 on? Knowing there was no fraud protection? And that a hardware wallet costs $100? Or that multi-sig is free? If you are storing that much in crypto, you need to either educate yourself on safe storage or use a custodian you can trust (exchange, multi-sig with family member, etc) who can.
I simply use my credit card number for my password on every site. it makes it so much easier to remember both. back in the day i would use my social security number. thanks to that simple trick, i never get robocalls or spam and i've been removed from most mailing lists because no one will ever issue credit or do business of any kind with me. a hacker stole my identity once and my credit score quadrupled. he even gave my identity back a week later!
You joke but back in the 90s when I first used the internet in the library I had to choose a password for the email. And the requirements were weird. Needs to be an exact length, letters, numbers, and so on. Then I realized my country SSN was a perfect match with the requirements! "Wow that's perfect, so I gonna use that as a password, nobody gonna guess that" - the naïve boy thought. Of course it was hacked by some other classmate that got the same conclusion and I realized that it wasn't that perfect and that almost everyone had the same idea due to the strict exact length requirements. (SSN in my country can be easily found again if you know name and DOB)
If Firefox can read it from disk without a password, any other program running as your user can read it from disk without a password. But to prevent this you can encrypt your Firefox profile with a password.
For starters, I don't want it to be too easy to spend money. If I want something, I should want it enough to pull my card out and type the number again.
Second, the auto-fill often doesn't work perfectly, so you need the card anyway.
Third, there's the slim chance it could be hacked. So why even take that chance when the only benefit is convenience
I don't save them in Firefox, not because I don't trust Firefox, just because keeping them in a password manager is more convenient. I don't think there's a reason not to trust Firefox.
I would totally trust it, but on a cyber security stand point I don't trust anything with my credit card. The only place where the numbers are stored are on the physical card itself
I leave a number wrong. The security code, date, whatever. I can remember one number and correct the autofill while making an attempt to keep things a little more secure and still convenient.
I'm also kinda wary of saving cards in the browser.
So I created a virtual card with a spending limit for that purpose.
Although there's more to fear from malware stealing saved passwords. Fraudulent transactions can be reversed, identity theft will do a lot more damage.
Your saved passwords are reversible too, just don't do it. If you really want to, put a password on it, but then why would you even save it at all? The convenience is lost at that point. And if you save it without a password, to decrypt the cc a decryption key has to be saved somewhere, and if it's not on your pc, it's saved on a server you don't own.
Temporary card numbers are awesome. Some CC providers give you one, otherwise you can use a service like privacy.com. You can also pay for things in crypto and keep only a limited amount of crypto in your browser-based wallet or do multi-sig so you have to approve transactions from two different devices. This can help minimize loss from an attack.
I don't. But even if I did, I wouldn't have much use for it as I use single-use debit cards generated via my bank app or TatraPay (my bank's instant method of QR code payments) if the merchant has that option. I just wish there was a universal method for instant QR code payments. It's pretty convenient.