Firefox Support Forum

when i tried to go to the website (addons.mozilla.org) it says: "

Secure Connection Failed

An error occurred during a connection to addons.mozilla.org. The server uses key pinning (HPKP) but no trusted certificate chain could be constructed that matches the pinset. Key pinning violations cannot be overridden.

Error code: MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem."

i don't really understand what it means, but yeah its says that.

I use an accessibility extension that modifies text to make it more readable, but I can't seem to make it work in reading mode. I'm aware there are some built in settings in reading mode, however these are not enough for me.

Hi there,

Over the last two (or more?) years I have noticed a recurring problem with Firefox for Windows 10 64 bit and Windows 11 64 bit. It happens on at least three different Intel i7 computers that I have. I always keep firefox up to date with its auto-updates.

The problem is that all webpages and web content will stop loading in all tabs and windows of Firefox until I fully quit and re-open Firefox. This includes links that I click on in existing web pages and new tabs where I enter a website address. When this problem occurs, I never get an error message saying that the website has failed to load. Instead, it will sit for minutes appearing to be loading, but nothing will ever load. During this time, other web browsers behave normally and demonstrate that I have a full internet connection.

This seems to happen once every one to four weeks or so. It also seems to happen shortly (within around 5 or 10 minutes) after resuming from hybrid sleep mode. Unfortunately, I've been lax in taking note of the exact details of the problem because I always assumed that someone on the development team was aware of the issue and working towards fixing it. After around one or two-ish(?) years of this happening and seeing it occur on different computers, I've now realized that it is worth reporting the issue and paying more attention to the details surrounding when it comes up. I will post back here the next time it happens with more details about the exact situation that played out. The only add-on that is consistently active across all the times I have seen this problem occur is LastPass.

Please let me know if this may be a known issue or if there is anything I should look out for or report.

When will Mozilla introduce RTX Video Super Resolution technology to its Firefox browser?

https://blogs.nvidia.com/blog/2023/02/28/rtx-video-super-resolution/

Hi

In the attachment I've send you the bug, it's happening all the time. Most times while writing something down, or just casually using GitHub website. I want to report this bug 'cause it's a little bit annoying.

~ Cheers, Bruno

Hi Firefox Team,

is there a way to change the available paper-size formats in the "Save to PDF" dialogue (A3,A4,US,...)? I would like to select e.g. A2/A1/A0, or ideally even custom size x/y measurement.

Enclosed an image of the dialogue. I am on Linux, Firefox 111.

I could be wrong, but didn't the dropdown menu contain at least A0-A2 around 1-2 years back? Is it correct to asume, that the "Save to PDF" paper-size selection is not influenced by OS-related printing configurations?

Thanks and best regards

Hey people!

Stuck with an issue. Need your help. Tried all the documented troubleshoot options - like refreshing, disabling hardware acceleration, Recommended Performance, troubleshoot mode, etc.

New installation. Worked fine. Logged into Firefox Account for Sync. Since then, High CPU usage even with no tabs open. No clue why.

This is the profiler report: https://share.firefox.dev/3Khzq1C

Still stuck on 35%-50%-60% CPU usage with just one tab. And just a new blank tab!

The profiler report, if can be decoded in laymen terms, as to what activity is causing so much CPU usage, will be of immense help.

i do not remember how find my mozilla Firefox account in order to clean out the cache and cookies, and to resolve breaches. Could not manage to figure out how to resolve breaches the last time I signed in... Ugh!

Look! I love what you guys are doing. I use Firefox on windows and degoogled android. When I've signed up for mozilla account, I specifically unchecked all email notifications/subscriptions. After that came an mail about your VPN product. OK, I have updated my preferences again, even though all was unchecked. After 1 day I get the next mail about your Pocket feature. What the heck? It seems now days NOBODY respects my choices about newsletters, ads and notification preferences. I have turned off all communication twice so far and you're still sending them. Why? Seriously why? And don't tell me there is a delay in the system, it needs 48 hours to update the preferences. This is the usual answer to my mails. Please turn off this spamming behavior. It is just bad for you and bad for me. I believe if someone chose you over fucking google products, than that individual is capable of deciding which of your products he/she wants to use. You don't need to push it like everybody else. If possible toss this feedback to upper management so they might change this behavior in the future.

In the past when I saw an article that I wanted to email to myself, I would click on the envelop icon and it would go to “choose and application to open the mail to link” I would choose if I remember correctly Yahoo and it would open up.

Now the only choice I have if Firefox, and when I click on it nothing happens. What is the problem?

Under”Choose other Applications”, there is nothing to forward that article to me.

After a mistaken forced restart (inadvertent pressure on the shutdown/start key), one of the 3 windows I had open is invisible. It shows in the 'Windows" menu as one of 3 but when I select it - nothing. It does not show as a recently closed window in History. I have restarted Firefox multiple times, including deleting the xulstore.json file then restarting (a fix from another similar thread).

How can I restore this inaccessible window?

Thanks

For years I have watched the French evening news (le j-t de France 2) on Firefox. But once the latest version was installed, it has no longer worked. I get to the website okay, but when I click on the arrow to start the program, nothing happens. I've made the website an exception to pop-up blocking and have canceled the no tracking icon on that site, but it hasn't helped. Any suggestions? (I'm a professor emeritus of French.)

My email screen has gone to a larger page that will not fit on the computer screen, whether in full screen or partial, the inbox is pushed off the left side, and the email previews are so large they extend half the way across from the right side. Previously most of the center was for email lists, but now it is just a small part that will only show two or three emails. How can I change it back the the old format?

I have an on-line subscription to the Sydney Morning Herald. Recently, every time I try to read an article, Firefox freezes. I can read SMH okay on my iPad. If I transfer the SMH Article URL into Edge everything works okay. What have they done to Firefox?

Firefox always brings up the saved password for a particular website, but the password is old and wrong. Going to the Logins and Passwords management page, I enter a search for the website as it appears in the address bar, but there is no associated login in Firefox. There is no password associated with any part of the website's name or URL in 'about:logins' . Yet still some password shows up with a saved login. How do I find the password for this website and correct the password?

When I print a file that was sent to me Firefox inserts its name and the document name in the header, and inserts the time and date into the footnote. How do i get rid of that?