Firefox supportforum

As I am a corporate website administrator and I use an ultra-wide monitor with a resolution of 3840x1600 pixels, I need to be able to run firefox with window size of full HD to verify the compatibility of the site for common displays.

How can I ensure that the Firefox window always starts at this size?

In the case of Chrome, you just add the parameter -window-size=1920,1080

Unfortunately, this solution does not work here (so it worked in older versions).

I found some plugins that promised this, but none worked correctly.

I find the option to set a default size to be very basic and essential and prevents me from switching from Chrome to Firefox.

For years we have been able to login to two different websites running on different ports on the same host with our Firefox browser (The last working version was 102.14.0-3.el7_9) our RHEL 7.x system. When I accessed the different sites, there was two Authentication Decisions, one sending one cert (We will call it CertA) to the system and the other listing sending a different cert (We will call that CertB) to the system, same hostname though.

I updated the Firefox browser to 115.7.0-1.el7_9 and ever since, when I navigate to the first website, it remembers the first Authentication Decision to send CertA to the system and works as intended. Then, I try to navigate to the second site and I never get prompted to pick a cert for the second site (CertB is what it should prompt for) and the connection attempt fails with a "Secure Connection Failed, Error code: SSL_ERROR_UNKNOWN_CA_ALERT" message.

If I go and delete the Authentication Decision for CertA, then go to the CertB site, I get prompted for the cert decision and I am able to login just fine. But, then if I try to go to the CertA site, I get the same error listed above.

I can use a band aid to check the "History > Always use private browsing mode" checkbox (Which never remembers the Auth. Decision) option in Firefox, then have to remember to close the browser each time I want to navigate from one site to the next. But I have never had to do that in the past and wondering if this is a new bug or if it is somehow considered a "Security Feature" or something.

I searched around the net a bit and couldn't find a way to manually add an Authentication Decision myself. Is that possible somehow with a config file edit on our Linux system somewhere?

Thanks kindly ahead of time for any consideration to my issue.

Hello everyone,

I'm currently consuming APIs hosted on an external server using Java( or any other server side language), and everything works smoothly. However, when attempting to consume the same APIs in JavaScript, I encounter the 'Access-Control-Allow-Origin' error.

After some research, I discovered that browsers implement security checks leading to this issue. Can anyone advise on how to disable these security checks or resolve this issue when accessing the website in the Firefox browser? Any insights would be greatly appreciated. Thanks in advance!

Hello Firefox Community,

I'm reaching out because I've encountered an issue while trying to install an add-on on Gmail, and I'm hoping someone here might be able to help me out. The issue happens with any add-on, but the one I wanted to install is (https://workspace.google.com/u/0/marketplace/app/todoist_for_gmail/815972520808)

When trying to install an add-on, I get directed through to give the add-on permissions and I get thrown to the following error 400 each time (see screenshots). I've already tried a few troubleshooting steps, such as clearing my browser cache and cookies, disabling other add-ons/extensions, and even restarting my browser, but unfortunately, none of these actions have resolved the issue.

I'm sure this problem is a more general issue with Firefox. I reached out go Google and they could not help and the installation was successful on Chrome. I also tried installing other add-ons and a similar problem occurs. If anyone else has experienced a similar problem or has any suggestions for troubleshooting steps I can try, I would greatly appreciate your insights.

Additionally, if there's any specific information or logs I should provide to help diagnose the issue further, please let me know, and I'll do my best to provide whatever is needed.

Thank you in advance for any assistance you can offer!

Best regards, Kamil

i made a custom firefox colour setup for my desktop machine, and it doesn't have any option to save it- because of this, on my laptop which is synchronized to my desktop's firefox settings, it is not showing up at all and if i go to firefox colour it isn't there for me to add. so how do i DO this???

i do not want to maker my custom setup public so it is not available to all, it is my own setup using some of my own artwork which i do NOT want made public on the internet.

there MUST be a way to save it however and let my laptop's firefox also display it,m yes???

and on that topic, why isn't it just automatically synchronizing when everything else does?

I would like to use the Firefox Container tabs. I understand how they group tabs in different catagories keeping cookies separate and making your browsing more private. I use an add-on tool that groups tabs so that I can open an entire set of tools at once. Can I use the Firefox Container tabs in a similar way? I'd like to be able to select one container and have all of the tabs in that container open at once.

Basically, I have three different profiles in my Firefox with three different app icons, but only one of has notifications.

For some odd reason, the MacOS notification center is showing the wrong profile. It's like only one of the profiles is visible, or working. I tried resetting it, which is apples way of "deleting" it, but Firefox keeps forcing that particular profile and not my main one.

Firefox 122.0.1 (64-bit) MacOS Ventura 13.5.1 (22G90)

Hello I've few servers with BMC cards for management. I need to connect for managing servers. I'm in a LAN with IP 10.11.225.x My server are in another site with the LAN management 10.91.x.x between the two sites we have a VPN IPsec Each time I try to connect Firefox said : You will be redirected to another web page for authorization After few second, the redirection is to an IP address 10.11.244.x. How can I solve the problem ? Thanks in advanced

Help. Ionos is my website host. My site works just as I want it to using Firefox with popup images. Problem is when I look at same site using Google Chrome nine different popups on lines 828-870 further down page do not popup those popups like lines 455, 460,467, 477, 675 and 685 do when rolling mouse over highlight words when I use Firefox. What should I look for to fix. Thanks j

link texthttps://retail-support.lightspeedhq.com/hc/en-us/articles/231779808-Setting-up-the-Zebra-label-printers-for-custom-label-printing

We need to configure our firefox settings on mac to use with a zebra printer & lightspeed label printing. We have worked with zebra support and lightspeed support, and the firefox version 122.0 does not let us "save" the about:config settings needed to print. We put them in, but it reverts back and doesnt let us save the steps defined in this section of the article:

6. Format your Firefox browser settings Format about:config settings

contact me at: mmorris@coretechsolutions.com

Hello

I was taking a Government mandated test conducted by NTN, this exams are proctored and I have to run lock down software in order to take them, have webcam on etc. Part of the process is making sure that no other software is open and running in my task bar, which the proctor verifies. While I was about an hour into the test everything was shut down and I was notified by browser that the proctor shut my exam down and I needed to contact support.

So I opened a ticket and they told me that their software detected Firefox launching in the background. Because of that the proctor took action and disqualified me for cheating/opening software during an exam.

The huge frigging issue is, I DID NO SUCH GODDAMN THING. Firefox was 100% off and I never even went near the goddamn thing, they watch everything you do on screen as well and my mouse never even moves towards the taskbar at all. I was in the middle of watching a video clip in the exam to answer questions about it.

Long story short, I'm in a lot of trouble. I'm not going to jail or anything like that, but I am being accused of cheating and have had the job offer rescinded. I really needed this job and wouldn't jeopardize it in a million years. Like come on ffs it was a video about what you would do in a situation, what the hell am I going to Google??

Can anyone offer any insight, or some way to prove to them that I didn't do anything. Is there some Windows log or Firefox log or something that would show that I never launched it? NTN Tech support feels that it was some sort of background process or update, but the rules are the rules.

ANY HELP AT ALL would be GREATLY appreciated!!!! I've tried calling Mozilla and no dice. Not sure how to get a hold of anyone there.

I never really used firefox password before, I decided not to use the master password function, but today Pocket was not opening, i was prompted for password, so I changed my firefox password, and now icon at top of screen says my firefox account is disconnected? Help! .

Firefox uses below 2ghz CPU speed when my laptop runs from battery when I'm watching YouTube videos and browsing. But YouTube when power adapter is ON, Firefox uses above 2Ghz speed when watching YouTube videos and browsing some web sites.

I cannot browse using firefox and Safari on my MacBook Air for the last 3 days. Message saying "Warning potential security risk ahead" I have cleared cache, dont know what else to do