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I'm having a pretty frustrating developer experience using Firefox to help develop an app that uses Server Sent Events. Now, I'm not sure if I'm the one at fault or if it's something to do with Firefox itself (most likely I'm missing a config option somewhere).

Anways, the issue I'm having is that I cannot seem to be able to see Server Sent Events in the network tab of dev tools. This is specifically what I'm looking for: https://firefox-source-docs.mozilla.org/devtools-user/network_monitor/inspecting_server-sent_events/index.html

I'm testing this functionality by going to https://sse.dev/testpage.html, opening my network tab. I can see the connection to the SSE endpoint however, all I see is "No headers for this request" or "No response data for this request". I know it's getting the data through the event source because I can do stuff with the data. I've also tested this in Edge and everything appears in their network tab as expected which, makes me feel like this is more of a browser-specific issue. Again, I feel like it's me missing a config somewhere or having a privacy setting set which is somehow messing with the event stream.

Any help is appreciated... I guess I got to use Edge for the time being 🤮

Locking this thread, please continue here: [/questions/1443976]
Why has my firefox browser failed to connect with my banking website?

Over the past day or two, I've seen firefox incorrectly render fonts on a couple of websites. So far, I've only noticed two websites effected: quotientapp.com and xero.com (not the actual landing page, but rather the login page and other pages available after login https://login.xero.com/identity/user/login). This problem may extend deeper but these are the only places I've found them.

At first I thought my eyes were playing tricks on me but nope, something definitely not right. No new addons have been installed on my system. I've also deleted all local storage / cookies (via the Inspector) for these sites thinking it must be some caching issue - but no, it's still doing it.

Inspecting the font-family shows the issue (this is from the page https://go.quotientapp.com/sign-in) - have attached the images below of what I see.

I do use uBlock, but it is disengaged on Quotient and Xero (these are work related sites, they show no ads). Other add-ons I have installed include Bitwarden, Dark Reader, Firefox Multi-Account Containers and Reddit enhancement suite. I've ensured all add-ons are up to date as of this posting.

FWIW I do allow all the extensions above (with the exception of Firefox Containers which I don't allow) in private mode.

Any insights on how to get to the bottom of this?

duplicate of /questions/1443809 thread.

I need help with everything to do with email so what is your email address or what is your phone number so I can ask my questions ?

Blaine McKearney, [removed email and phone# from public support forum] Calgary, Alberta , Canada .

I want to use a key to open Speed dials in the same tab and same key with 'Shift' to open that speed dial in a new tab.

My favourite were Ctrl+1, 2, 3, 4 ... and so on. And when I used Ctrl+Shift+1, 2, 3 etc, then they opened in a new tab. But now the Ctrl+1, 2, etc are focusing already open tabs. How to revert to old behavior of these shortcut keys?

I've read several articles on using extensions like 'Shortkeys (Custom Keyboard Shortcuts)', but those don't let me use C+1, 2, etc. Also another method of using to js files (auto.js something) doesn't seem to do this job, as I think that would only disable some KeySrtcs altogether.

see my screenshot: 1. this smal ? arrow - show tab titles- how can i disable in about:config 2.other symbol -extensies are empty...how can i add here my addons? 1- i dont have it in my desktop and 2-in this desktop i see all my addons, in this symbol.these screenshot are from my new laptop...

in my account my questions here ,in this firefox forum , i see my questions about... thunderbird! its strange,right? i look for my questions and asnwers in this forum. so where are they ?

I say crashing - it will not open. The closest I get is that it will say 'running troubleshooter mode', and then immediately close again before I can even see the actual browser. This issue does not occur with Chrome or DuckDuckGo, so it is not an issue with a Microsoft Family account. This issue is not related to missing or corrupted redist files, as I have installed all of the latest files there. I would like to switch to Firefox, as I use it on my phone.

https://youtu.be/YIS4MET6fys

^ this is a video of what happens.

Thank you for any help.

I have been watching SBS OnDemand successfully until today. I now receive a consistent Video Playback error on any video using Firefox Ver 124.0.1.  I do not have an Adblocker installed. (Windows 11 Pro 23H2).  I do have AVG Internet Security installed.  I installed no apps. I turned off Enhanced Protection for sbs.com.au in Firefox but the problem persists. The problem does not occur on Chrome.

Hello everyone,

I posted my issue on the french speaking forum a few days ago https://forums.mozfr.org/viewtopic.php?t=153652&sid=96223ded5b326b4da4114d4c0fb4b740 I think I've had this bug since the last update of Firefox. I have checked on other browsers (Edge and Opera), and I have no problem with them. Its also ok on my mobile phone ... with Firefox !

Thank you for your attention and any help you can provide.

Regards Damien

Locking this thread, please continue here: [/questions/1443259]
We have enabled the "Prevent changing proxy settings" policy from the Group Policy Management Console. However, we've encountered an issue where Firefox browser overrides this policy. It has come to our attention that Firefox is the only browser that allows users to change the default Windows proxy settings directly from the browser itself.

To address this, we want to prevent users from changing proxy settings via Firefox browser as well. Could you please provide guidance on how to disable this feature?

I installed Firefox on a new computer running Windows 11. I use the X-notifier plug-in to access my Gmail account but can't get X-notifer to run properly on this new install. I was getting an error message, but now it says "Can always read and change data on this site" yet the envelope icon does not appear in my tool bar like it does on my old computer.

As an alternative, I signed into my Gmail account so I can read my email on a browser page. While that works, it works too well -- as soon as a new email arrives, the browser tab running Gmail pops to the top and interrupts anything that I am doing -- even when I am typing a new email or filling out a form on another tab.

The only way I can deal with this is 1) sign out of Gmail until I want to check it, or 2) pull the Gmail tab to a separate window and minimize it so it can't interfere with what I am doing.

I'd like to know if there is a fix for the X-notifier plug-in or a way to stop the Gmail tab from "taking over" the browser.

On my Windows-11 Laptop, the Vertical-Scroll-Bars in Firefox are too narrow for me to use comfortably. I am struggling with the Touch-Pad, Mouse Pointers, causing the frequently needed act of Scrolling to become a dreaded ordeal? If someone would provide clear and concise instruction on how to make the Vertical-Scroll-Bars the Classic Width of old, it would be greatly appreciated. Thank you! lg

EMBARRASSINGLY I REALIZED WHAT I NEEDED TO DO. THIS IS THEREFORE NO LONGER NEEDED TO BE ANSWERED, SO YOU CAN SIMPLY MARK IT SOLVED IF YOUD LIKE. THANKS!

I chose to reinstall Firefox browser in order to start over fresh and ensure a security refresh. Once installed, I created an entirely new Mozilla account with new info. However, when I go up to the top right of the browser and click on the little icon of the circle with a bust in it (the Account icon), it simply opens the preferences and related settings, it does not allow me to sign in to any account, nor does it show if I am already signed into any account. Is this a malfunction of the iteration I installed, or am I misunderstanding something?

Thanks in advance for your help!

PS attached is what page I am shown when clicking the aforementioned icon

I have noticed a bug with how the Firefox icon appears when launched in the Windows 11 taskbar when the never group option is enabled. When Firefox is launched and is the only application open in the taskbar, there is no label present next to the icon like other programs have when launched. There is the little line underneath the icon though indicating it is launched but that is it. As soon as I open another application though, the label will also appear for Firefox. This is only a minor annoyance but is definitely as bug at least for me and should be pretty easy to fix. I will attach screenshots of the behavior. In the first screenshot, you can see that Firefox is open but has no Text label like it is supposed to. The second screenshot is as soon as I open a second application.

I am on Windows 11 Home 23H2 Build 22631.2792 Windows Feature Experience Pack 1000.22681.1000.0 Firefox Version: 120.0.1

My home screen and all other browsing screens are so high and wide that I can't scroll down because the side slide bar is not on the screen. I have no idea how this happened! I can't find any articles that help me reduce the screen size that I can understand. There seems to be no solution option in firefox settings to adjust the screen size. The View tab does not help because it just offers zooming of the data on the screen, not the actual size of the screen.

A few weeks ago I saw an Mozilla ad for a new Mozilla software product that cleaned up your PC and made it run better. The price was around $125.00 (I don't remember that exact price). It said that I would receive an email from Mozilla with download instructions. it's been a few weeks and I have not gotten any email. Does anyone know if Mozilla offers any such software or did I get scammed? I'm pretty good about seeing scams but Ive used Firefox and Mozilla for years and trust them. Maybe that's why I wasn't as careful as I should have been.

Thanks for any help that you can provide. Ron

Popups for Smithsonian magazine keep appearing, sometimes 2 at a time, despite having popups blocked. I need them to stop. They are annoying and cover up content of web pages.

Hello,

Clicking to open Firefox gives me the following error message:

Error. Platform version '120.0.1' is not compatible with miniVersion >= 120.0 maxVersion <= 120.0

Can't open firefox! I'm running Windows 11 version 10.0.22631 Build 22631

Thanks! Julie