Firefox Support Forum

I am unable to sign into Costco.com using Firefox. I get an error message:

    "Bad Request - Header Field Too Long
    HTTP Error 400. A request header field is too long."

Turning off all extensions didn't help. Opening a private browsing window DID work. Using Chrome DID work.

Thanks!

West Virginia has a website to download old death certificates, but they wont load. There's nothing but a blank page. I'm not positive that it's a Firefox problem, as a friend of mine who uses IE cant load them either, however, she CAN load them on her Tablet. As a historian, I really need to get these records for my research, so I was wondering if someone could go to the site and see of the records appear for them to be downloaded. This is a direct link to one of the records:

link text

While this is the main page were you enter the name you are looking for: link text

If you discover anything, please let me know. Thanks!

Task Manager detail line can be expanded to show multiple open tabs, and I can sort display by CPU but that doesn't help me identify WHICH SPECIFIC tab is using high CPU. Are there any tools to help me quickly identify (and perhaps End) such high CPU tabs/processes? Thanks!

Hi folks.

I use Firefox a lot. I have about 36 windows of firefox open and some of those can have a LOT of tabs on/in them.

I have recently "evolved" to using a computer monitor. Before then it was an old flat screen TV - 1336 x 768 resolution (there about).

Now I have a 1080p monitor and things are different.

I use Node-Red (dashboards) and they took a beating with the new size.

I've set THOSE tabs to 133% magnification - and yes that isn't the correct size to emulate the TV. But I only thought of doing this a fair way down the track of trying to rearrange the layouts. (MY MISTAKE)

But I realised that at least not too long down that rabbit hole.

So that WINDOW is set to 133% zoom. But just now I tried to zoom out of another tab on that window and realised that the zoom on the other tabs is changed too.  :(

Am I missing any tricks? I know I could move THOSE tabs to a whole new window and that's that. But in the bigger picture I just want to check.

To get to the point; I would like to make myself available in order to supply the information needed to establish my own website from my own server. I don't want to be forced to buy the rights to my own intellectual property. When I make it known that I am interested in a specific web address for my own use this will be used to gouge my resources and just make me pay a fee for things I don't need. Mozilla says that my website is not secure but I have an SSL certificate and it even later admits that the information is encrypted. I'm not mad, I simply don't want to be bullied and wrangled into purchasing what I don't need. Nobody has the web address I currently have as my ServerName. The more I advertise it while I am working on it, the more likely I will be gouged or it will be stolen out from under me.

I've been working on computational engineering topics on my own for about a year and a half since I have been unemployed. I am interested in developing my own website, free and clear. I have gotten to the point that I can access what I have built on my local network. I run a Macbook Air and dual boot a tower with Ubuntu 22.04 and Windows 10. I built a website on Github but I want to run my own version on Apache from my Ubuntu OS. So far I have an Apache server running and I can access my website with the web address (httpS://www.example.com) I want from the Ubuntu tower. When I am on my Mac I have to type the IP address of the tower to access the site; the web address won't work. I can do the same thing from my iphone while in the house as well. I have created my own SSL certificate (though I am not a certificate authority). When I access the website on the tower with the web address, Mozilla bonks me with a security warning. It says that there is no ownership information, though when I made the SSL cert, I provided a lot of info. I have a legitimate company verified with the IRS (established Jan 2022). I have a paypal account for any financing I may need to do, though I don't want to support greedy ISPs that horde resources and spy on their clients. I can provide practically any info you may need and I appreciate any advice you can give to help me avoid paying through the nose for a pet project that will NEVER turn a profit, especially if it has any additional overhead. I was given the tower through a contract position and I want to use it to it max value.

All that being said, I appreciate a stranger listening to my problems and considering them for a thoughtful response. I understand you have a boss and you may need to say what you need to say. I will try my best to be respectful; though I am rarely respected.

I am using Windows 11 and Firefox 116.0.3. Some characters like ‘ ’ “ ” — become weird symbols in Firefox when I copy and paste text containing them to html source text file. This started happening earlier this month, never happened before. Why is this happening now?

Since a few days, it is not possible to copy-and-paste any external text or content into the text field of WhatApp Web on Firefox. It works fine on Chrome. Also text manually copied from a previous WA message can be pasted.

We tried on other PCs with Firefox and Chrome, same situation. So it seems to be a problem of Firefox latest version.

Hi. I have a Mac running Ventura. I have done a fair amount of searching but can't seem to find instructions on how to add extension shortcuts to the toolbar. I feel stupid asking this question as I have added them previoulsy but just don't remember how it was done.

Since the FF update to 116.0.2 (64-bit) I am unable to save images from a very specific part of Ancestry.com. The database is the U.S., School Yearbooks, 1900-2016. All of the other image databases on Ancestry download without issue, and I am able to download the Yearbook images using Edge, so this appears to be a Firefox issue, especially as it began immediately following the most recent update.

The Yearbook images do differ from the others in that you are given an option to download two images as a zip file, or just a single image, but neither option results in the Save As dialogue appearing, and the images do not download anywhere.

This is a very strange issue, but maybe someone familiar with the most recent update could have some insight as to what has been changed that might have this impact.

Windows 11 Version 22H2 (OS Build 22621.2134), if that makes any difference.

According to this support page (https://support.mozilla.org/en-US/kb/sync-custom-preferences#), setting ``services.sync.prefs.dangerously_allow_arbitrary`` to True will sync all my preferences.

I have set it to true on the two devices I want to sync (2 desktops, Windows and Ubuntu). However, the preferences are not synced. For example, ``browser.compactmode.show`` keeps its default value "False" on my Ubuntu installation, despite it having the modified value "True" on my Windows installation.

I have tried pressing "Sync now", and restarting the browsers - to no avail.

Could anyone tell me what am I doing wrong?

I have been using Firefox as my default browser in Windows for a number of years without problems until recently. However I now find that, when I log on to sites where I have accounts, I am not automatically signed in. When I select sign in I am taken to a sign-in page where, on some accounts, , my usernames and passwords are already filled in. I have tried following Firefox guidelines with regard to settings and options, all to no avail. Can you assist me please.

Whenever I try to open Firefox, it takes about 25 seconds to boot. This behavior can be observed both with all the extensions running and in safe mode. The link to the profiles are shared below.

With extensions: https://share.firefox.dev/3riMPQZ In safe mode: https://share.firefox.dev/3OadE31

I have been noticing this for a few months now. Firefox works just fine after wasting ~25 seconds initially. I have also reinstalled Firefox multiple times. Right after the installation, the boot-up can be very fast (less than 1 second). However, after using Firefox for a few hours, the problem comes back.

I am not well-versed in reading Firefox profiler reports. So, please help me figure out what's actually happening in those ~25 seconds.

New York times articles briefly load and then disappear on one iMac. I think it is associated with the fact that the New York Times ads are missing or haven't loaded on that iMac. On our other iMac, New York Times articles load fine and the ads are present. I've looked in the Firefox settings on both and can't find any significant differences differences that would create this problem.

I can no longer access the website www.att.com. I receive the following error message. I've deleted history cache and cookies but still can't access it.

Access Denied You don't have permission to access "http://www.att.com/" on this server.

Reference #18.14ad3c17.1692143272.3762eaa6

Any suggestions? It works fine via Microsoft Edge

When I scan the QR code shown on my computer with my phone and press the sync buttons, I get a message on my phone to; "Open the authentication app and enter the security code it provides."

I have no idea what this app is or where to find it to open it. Is it on my phone or my computer? Why can't you just show the code on my computer sync screen?

And, your help pages just repeat the same instruction verbiage as the sync app on my phone. No additional help at all!

Since a week or two my Firefox tabs are crashing more and more often. At work on MacBook and at home on PC.

Deleting the cache and cookies and even starting in Safe Mode are not helping - in fact while writing this very message had 5 crashes meanwhile!

Don't know if you can access the crash report: https://crash-stats.mozilla.org/report/index/4cd570db-d90d-4fcb-aee6-0a1660230818

This last Firefox update had totally screwed up everyone's browser. Especially maps. Half of my maps, especially on Find A Grave no longer work. I dont know what you guys did, but you need to fix it fast!

Buttons like 3 bar preferences button, notification etc are broken or not visible just the highlight is visible and click the notification button also break the whole browser