I-Firefox Isithangami Sokwesekwa

We have a noticed a very strange behaviour with the latest FireFox (126). One of our webpage is behaving differently across our Integration and production environment. Both env are running identical code and similar network stack the only difference we have noticed so far is for our Integration env Firefox is sending the different user-agent string than for production.

Steps to reproduce: 1. Open https://integration4-view.publitas.com/automation-int4/reader-happy-path/page/1

2. Go to console and view navigator.userAgent the user-agent string will be:

    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:126.0) Gecko/20100101 Firefox/126.0" 

3. Now open the same content on production -> https://view.publitas.com/automation-prod/reader-happy-path/page/1

4. Go to console and view navigator.userAgent the user-agent string will be:

   "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) FxQuantum/126.0 AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.71 Safari/537.36" 

Our website changes behaviour based on which browser it is and based on second string our backend interprets the browser as chrome instead of Firefox.

If I change privacy.resistFingerprinting to True then the user-agent string is sent correctly.

Can you please help us identify what changed in the latest version that is causing this behaviour.

Version: 126 (64 bit) Test on Windows 11 and Mac OSX

## Premise ## I only ask a question after I thoroughly and at my best knowledge tried various ways and also what I found in these forums an others. This is another weird one for me.

Firefox 126.0 on a Windows 10 22H2

Hi I have been using Firefox maybe for 20 years... and I noticed in the last possibly 5 years has started to have problems after problems. More like bothers and I am not the only one!

Problems with YouTube videos either not loading properly or no audio and so on, tamed down at present! At some point I stopped using it years ago, then got back to it, but since I did a series of different things/work via browsers, I now have some others set to do one task/work.

Firefox is not only the ;standard browser for 'browsing' and basic shopping.

Anyway, this time from yesterday, DuckDuckGo Search not working any more.

There have not been any Windows or Security updates yesterday.

Any other search add-on works fine, but DuckDuckGo.

What I did:

1. Restarted browser - the obvious one 2. I do not really need to clear Cookies as I use an add on that does it for me as soon as I close a tab or browser 3. Downloaded 126.0 and re-installed it on top 4. No new add-ons were installed, but IU also re-started with all add-ons off 5. Cleared history - everything 6. Internet is fine, reset it - just in case, but also tested on other devices and DuckDuckGo works fine 7. My security is not blocking anything

Has Firefox 126.0 had an heart attack overnight, meaning there is a bug that comes out in certain conditions?

I just get from DuckDuckGo: There was an error displaying the search results. Please try again.

Any other Search work, even the less known such as Qwant and Mojeek. No idea. I wasted so much time... again.

Thank you M

PS I may have missed other things I did try and I may amend this post or add posts, if I cannot edit.

Hello, I have an odd situation. I have a new job, and want to sign into Firefox at work to sync my bookmarks and settings. The problem is that I seem to have saved the password wrong. My home laptop is working great as long as I don't sign out, but the system won't let me change my password without the old one. Is there any way to reset the password without having all my stuff wiped? Or can I do a backup on my home PC first, then do a reset/wipe, then restore? Thanks.

This is my Mac Monterey. My Windows 10 is in Safe Mode With Networking. The last update will not download. That version is 125.0.3. What's available under Windows updates does not download either. Now I am running my antivirus on my Windows to see if it runs clean. I do not know why I cannot apply these updates.

Suddenly, my login (user name & password) is not working on only one specific website, although it works perfectly with a couple other browsers. The site acts as though the information is not even being submitted-no change in site nor the "Login" button. I'm using the latest version of Firefox on Windows 10 and I have deleted all previous cookies and data, rebooted my PC with no difference in results. Thank you for any information.

Today while using firefox all my open tabs and windows crashed. Due to the situation, I had to restart my computer because everything was stuck. When it restarted I couldn't restore the previous session so I used various methods to restore it but I still can't restore the windows and tabs that were open today. I would like you to restore my session from before the failure today.

Hello! Browser version: 126 OS: Kubuntu 24.04 LTS. How to recreate: Set privacy.resistFingerprinting to true while running Kubuntu 24.04, enter a webpage like Wikipedia.

When I have privacy.resistFingerprinting set to true it breaks websites fonts (see picture). This problem occurred when I upgraded to Kubuntu 24.04 LTS.

I get the following console error that might be of interest: "Request for font "Noto Sans" blocked at visibility level 1 (requires 2)" To fix this, I tried to set the following prefs to 2 without success: user_pref("layout.css.font-visibility.private", 2); user_pref("layout.css.font-visibility.standard", 2); user_pref("layout.css.font-visibility.trackingprotection", 2);

I ran the following command, after trying to find a solution:

for i in $(echo verdana,arial,helvetica,sans-serif | tr ',' ' '); do fc-match $i; done

and I got the following results:

NotoSans-Regular.ttf: "Noto Sans" "Regular" LiberationSans-Regular.ttf: "Liberation Sans" "Regular" NimbusSans-Regular.otf: "Nimbus Sans" "Regular" NotoSans-Regular.ttf: "Noto Sans" "Regular"

Which seems normal to me.

Is there some way to fix this without having to disable privacy.resistFingerprinting?

I just accidentally deleted my account and i just can't remember my password but i don't want to reset my password because my data could be deleted and i have no backups and no other way to get my account back besides resetting my password

After updating to the current version of my OS(listed below) I can no longer drag a tab to detach it from the firefox window. Doing so drags a preview of the tab, but it is never separated from the current window. I can drag it to an already existing window to move tabs from one window to another, but not to create a new window from a single tab.

OS: Manjaro Linux 24.0.0 Wynsdey Linux kernel version: 6.6.30-2-MANJARO (64-bit) Desktop Environment: KDE Plasma 6.0.4 KDE Framework version: 6.1.0 QT Version: 6.7.0 Display Server: Wayland Firefox version: 125.0.3 (64-bit)

the email used for FireFox - glennww@cox.net was transferred to Yahoo. I can not seem to download emails sent to this email address into Firefox as I was able to do prior to shifting to Yahoo. I went in and changed the password to the new password and to the new POP server (pop.mail.yahoo.com) but emails can not be retrieved. What am I doing wrong. I deleted the email account glennww@cox.net and tried to re-install as a new account, but it was not accepted. I don't know where to go

Whenever I use the picture in picture feature, it always opens up in a bigger tab instead of the floating PiP. I am unable to adjust the sizing whatsoever. Is there a way to get around that?

For a very long time I have been using Afterpay successfully through Firefox. Since the last update of Firefox a few days ago, Afterpay has been failing to complete transactions. This has occurred on 3 different sites. I contacted Afterpay and it appears everything is fine on their side. This morning, after another failure, I tried the same transaction through Chrome and it was successful. Paypal still works with Firefox without a problem but it seems there is a transaction glitch between Afterpay and this updated version of Firefox.

Earlier I tried to open firefox to go on the net and Bing came up. I uninstalled Firefox and reinstalled and the same happened. Then I deleted the Firefox folder fron the hard drive and then reinstalled Firefox again. This time it opened correctly. I can only assume but don't know, the Bing thing came about through one on the windows 11 updates. How can I stop this from re-occuring or can I? I only ever use Firefox, its just the best, thank you.

PS: I did have Firefox as my default browser but Firefox still became Bing. Lis