Firefox Community Forum

I have a few passkeys saved in Proton Pass password manager. I can use them with any browser on any OS using various official browser extensions or applications. For Firefox, I use the proton pass extension (https://addons.mozilla.org/en-US/firefox/addon/proton-pass/).

The passkey for my Nintendo account doesn't work with Firefox. I tried with Firefox 140 on a Windows 10, on MacOS 15 (Sequoia) and on Linux (Ubuntu 22.04). Same problem each time: error message "couldn't complete passkey sign-in" (see the attached screenshot).

If I use the same passkey stored in Proton Pass with another browser, it works. I can log into my Nintendo account. I tried with Microsoft Edge on Windows 10 and on MacOS, and with Safari on an iPad.

It seems the issue is also related to the Nintendo website. I can log without problem into my Sony account (https://store.sony.com) using Firefox 140 and a passkey stored in Proton Pass.

starting at the update before the most recent one (currently june 30 2025) my firefox browser on my windows 10 pc simply doe not work at all. i am surprised it actually loaded the support page allowing me to write this, but every other page i try to open gets stuck in infinite loading. next thing i am going to try is uninstalling/reinstalling I GUESS. firefox on my other PC and phone are totally fine. is this bc i am running windows 10? please help :C i installed chrome and its absolutely awful

I'm trying to go into my work place drivers only webb site And the stupid GoDaddy thing keeps blocking me!!! Why am I being blocked from site I have book marked??? I don't want the stupid GoDaddy blooming me!!!

I shop on several websites, and the customer review section does not appear on the product pages. Thinking extensions may be to blame, I tried opening those particular websites in a new private window. But I still was unable to see the reviews. It works fine on Edge. Is there any way to fix this?

I saw my same issue described in an archived thread "Several users have reported connection issues with Google sites including YouTube. This has been linked to the "zero round trip resumption" feature. That is intended to speed up website connections, but there seems to be some kind of compatibility issue. Currently, there is only a hidden way to disable this and see whether it helps".

I tried the method given (going to about:config and turning security.tls.enable_0rtt_data to false) but it did not work.

I tried uninstalling and reinstalling, but I accidentally dragged the Firefox in the installer directly onto my dock (on Mac) and that Firefox was working perfectly fine. But I noticed there was "Firefox" drive running on my system. To fix it, I realized I had to drag the Firefox in the installer into my applications folder and run that Firefox. So I did so, and ejected the Firefox drive.

Using the new Firefox that was actually installed in my Applications, I am now stuck with the same problem of Google sites not being accessible.

Recently I'm having an issue with Firefox that makes it so when I try to open it, it simply refuses to do so. Say on my desktop I double click the icon it will open for a split second and then instantly close and refuse to do anything afterwards. This is very frustrating, and I haven't yet discovered a solution and would really like to be able to use Firefox again. What is really strange is that this is a persistent problem not only on my laptop but at my pc as well which are two separate devices. If anybody can help or has experience with this problem to offer incite it would deeply be appreciated.

I have sugarcrm running via firefox. I show a phone icon for click to call next to phone numbers but click does not initiate the call. I have to highlight the phone, right click and send it to the dialer.

Is this a settings issue?