I-Firefox Community Forum

Relevant to Firefox running on Ubuntu 22.04 Linux and an x86_64 platform.

Until roughly 2/2026, it was possible to load a security device by opening Settings, Privacy and Security, Security Devices, then browsing to a shared pkcs11 shared library, in my case /usr/lib/x86_64-linux-gnu/opensc-pkcs11.so, and clicking Load. The shared library would load and would be loaded subsequently whenever Firefox was started. For roughly the last two months, Firefox would pop up an error saying it was not possible to load the security device, but it would actually be loaded and it;s functionality would be available for the current session. For the last two weeks, the library would load without error, but only for the current session. Starting on 4/13/2026, some functions in opensc-pkcs11.so work, but not others. For example, it is no longer possible to connect to MS Teams web interface.

I need help with annoying pop-ups. I followed instructing. It only say allow, not block, when I go to settings, security & privacy, checked block pop-ups and third party redirects.

When I logged on to my laptop this morning, it appeared that my Firefox was updated. I immediately was inundated with pop up alerts from McAfee. I checked it and learned it was a scam. However, my husband thought it was legit and allowed them to do a scan!!!! He didn’t download any software. What do we need to do?

(I did see the solution to stop these pop ups and have already resolved that issue. I’m just worried that some party scanned my laptop.

I'd never seen a Windows Security prompt when attempting to view saved passwords before, so I was confused when I saw it for the first time recently. I have a primary password set within Firefox, and I never enabled "Require device sign in to manage passwords" in settings. I also cannot disable this setting without entering my Windows password.

I was alarmed that this may be a malware symptom, as I'd recently connected to a new public wifi network. Is it a known issue for this setting to become enabled by itself? At the time of this issue, I was running 150.0.3. I have since updated to 152.

In Firefox Desktop 151.0 Beta 1, I'm experiencing a severe DNS leak even with DNS-over-HTTPS (DoH) set to "Max Protection". I've tried all available troubleshooting steps (including resetting `network.trr.*` preferences, disabling extensions, and testing in a clean profile), but the issue persists. > The same configuration works correctly in the previous version (150.x). Has anyone else encountered this regression?

I was looking for information (search engine Duck Duck-Go) about plants and suddenly I got a massage which says my iphone is hacked. I was not able to acrivate any button, besides the ok button, which I did not trigger of course. I tried to find info (pc) about the address but I shows a black screen. Than I removed firefox and re-installed it. Now the massage is gone. I have no idea where this massage comes from and if it will install malware if I would have used the ok button. It might happen again and it would be nice to know what to do Thanks in advance….

I have used FF on my laptop for many years and AVG AntiTrack on it for 1-1/2 yr without issue. However, today I got a message that appears to be from AVG (but also includes the FF logo) that their AntiTrack is disabled and I need to add it to FireFox, with a "Resolve" button and NO way to close the message. How do I know if it is true or an attempt to hack me? Have there been any other reports of this happening to others? TIA, KBoDolphin

I am unable to log into my energy provider, when I log into my bank I can't use some features like seeing all my transactions, I can't log into Twitter, I can't play anything from Substack.