Firefox Community Forum

I've been hit with a Trojan virus today that only applies when I'm running Firefox. I've been advised that resetting my browser (or even doing a 'factory reset') will remove the problem but there doesn't appear any way of doing so. How can I do this to hopefully remove the Trojan? Trying to 'Remove the virus now' in the Firefox pop-up doesn't work.

Chúng tôi luôn đồng hành cùng các dịch vụ trên các trang web và các dịch vụ khác tuân thủ đúng chính xác quy định nhưng ngược lại các trang mà Chúng tôi sử dụng đều là giả tạo và mạo danh

I'm hitting an intermittent failure that I believe is related to Local Network Access (LNA) enforcement, and I'd like help confirming whether this is expected behavior or a bug worth filing.

Environment

Firefox 159 (problem does not occur on earlier versions I tested)

Page origin: public hostname

The target hostname resolves to 100.93.28.9 in my environment (corporate VPN / internal DNS). That address is in 100.64.0.0/10 (CGNAT), so Firefox classifies it as a local/private network target.

Symptom

Firefox shows the "local network access" permission prompt for this site.

I have granted permission, including checking "don't ask again for this site."

Despite the saved permission, requests succeed sometimes and fail sometimes.

When they fail, the console shows a mix of NS_ERROR_NET_UNCLEAN_SHUTDOWN, NS_ERROR_NET_RESET, and occasionally NS_ERROR_NET_PARTIAL_TRANSFER.

Is there a way to view all cookies or all site data for _all_ sites in a central location? I have a malware compromised computer that I took off the network and want to check which sites have auth information stored in cookies (or maybe local storage).

I cannot use the developer tools as those require a tab where a page of an origin is already loaded, which is of course not possible since the computer is now offline. Just the cookie count and storage amount is not sufficient because most pages store something, even if there was not login.

Three pop-up windows keep coming up on the right side of my screen, having to do with activating protection, turning on firewall, removing viruses. Clicking on the X closes them for about ten seconds, then they come back. I've tried clicking on "ignore," but they still come back. I don't know if these are legitimate notices or not.

It would seem Firefox claims ownership of my file system and does not allow me to make changes even with admin permissions. I am completely prohibited from making any changes to the profile folder, copying any files into it, or doing anything other than copying from it. Simple chrome edits are utterly impossible, and security tabs or changing permissions has no effect.

This is rather worrisome.

Hello, I am attempting to export a signing certificate PKCS #12 file, but I get an error message stating "failed to create back up PKCS #12 for unknown reasons". Is there anything I can do to fix this and export the certificate?

I have a APC UPS and the software provides status information on localhost 6547. For the last 9 months since I got this UPS this has not ever been an issue, but for the last three days I keep getting an error message when the APC software tries to open a tab in Firefox. The error message is "Firefox spotted a potentially serious security issue with localhost:6547".

How do I make an exception for the APC software so I don't have to authorize Firefox to open the tab every time I want to look at status information for the APC UPS now?

I hope the firefox desktop browser, supports to protect the profile from getting access by other person, who uses the PC. Whole disk encryption is too heavy, so I want to protect the profile on browser side since you already support master password to protect the 'Password'.

Feature request: For a profile with firefox account loggined. Prompt to re-type the password to open the browser, or you can also lock the browser manually until re-type the password. Then able to access the bookmarks and history, so as the session tabs.