Firefox Community Forum

Hello Firefox team, on Firefox 156 64-bit, AI Controls show chatbot enabled in about:config, but the sidebar 'AI chatbot' entry and toggle are missing. Docs indicate this control should appear in Customize sidebar. Please advise if this is a UI exposure change or if there's a supported setting to restore it

Sir, I am a court staff. I am using DCMS portal everyday for my office use. unfortunately I cannot login in DCMS portal via my this PC since yesterday night I can login DCMS portal through my phone using same user id and password. .Please solve this issue at the earliest.

Yours faithfully,

Minimol.KS

This is a bit difficult to explain, but I'll do my best.

Our company uses NetIQ Identity Manager, which we access through a web browser. I primarily used Firefox until I had to switch to another browser because of this issue. The problem only occurs in Firefox; I have tested several Chromium-based browsers, and none of them exhibit the same behavior.

On a specific page within the application, there are two panels: one displays a list of users, and the other displays details for the selected user.

The issue is that Firefox does not show a separate scrollbar for the user details panel. Instead, it only scrolls the page based on the height of the user list panel. As a result, when the user list contains fewer entries than the amount of information displayed in the user details panel, Firefox is unable to scroll through the entire details section. The hidden information still exists and becomes visible if the browser window is resized to be taller.

When the user list contains enough entries to make that panel taller than the user details panel, all user details are displayed correctly and scrolling works as expected because the entire page can be scrolled.

In Edge and other Chromium-based browsers, both panels have their own scrollbars. The scrollbar for the user details panel is only displayed when necessary, such as when the amount of user information exceeds the available space, but scrolling works correctly in all cases.

Is there anything that can be done to resolve this issue?

Unfortunately, the page is hosted on our company's internal network, so I am unable to share it.

The issue first appeared at the end of February this year. I believe I was using Firefox version 148 at the time. Prior to that, the problem did not occur. I am using Windows 11 and have tried the troubleshoot mode, which did not help.

Each time I open a new tab, it opens in Firefox, instead of my home page. I have my home page set to DuckDuckGo and have tabs set to open to my home page. Each time I click on a new tab, it goes to Firefox and I have to click on the Home icon.

So I found a website that I really want to check frequently so I bookmarked it. The website's favicon is an image of the developers face, and honestly I don't want to see that all the time. I'd like an option to remove/and or change the original favicon to a custom image upload. I also think this is useful if a website doen't have a favicon and you want to add your own. This is just about the bookmarks bar, I don't want to change a favicon for a website everywhere the favicon shows.

I have labeled 4 containers as Personal1, Personal2, etc for use with the four websites I have Firefox "remember for the next time I open the browser. I'm certain I could come up with additional names if need be, but was wondering if Mozilla had devised any container names other than Personal, Work, Shopping, Banking, and Facebook.

Unbelievable! Talk about irony. I just got the latest Firefox update. What was it touting? "We've blocked MORE of the pop-up ads!!" And what did it include? A pop-up advertisement from Mozilla. I just wanted to find out if that was a gag, a one-off incident, or someone pirating Mozilla's new update to show that it doesn't do what their touting.

I upgraded to 156 and the new tab informs me of a new ad-blocker feature. It tells me to open Settings - Browing - Ad Blocker. I did that and that option is not appearing!

So, similar to this post but I haven't downgraded, only upgraded.

OS: Windows 11 (26100.8893) Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:153.0) Gecko/20100101 Firefox/153.0

I can load it up in the morning, load all my standard tabs, then not too long into it a tab will 'crash' and require a reload. The reload then says its a dramatic crash and the whole browser needs to restart. Soft or Hard (i.e. "Exit") restarts always then ask to create a new profile on startup. This means I lose so much configuration (settings, etc) that is not in the Account Sync, meaning huge amounts of time have been wasted setting Firefox back up again every day.

When I go to about:profiles I can see all the old and new profiles (recently cleaned up all the old ones).

I do use my FF Account across various versions of Firefox (run a linux OS that still has a 14x version - need to upgrade OS to get more recent, but its a significant upgrade that had previously failed so not high on my 'want to resolve' list) - all the Windows OS's have the latest FF.

“Open previous windows and tabs” is on. History is set to Remember history. I do not close tabs one by one. Ctrl+Shift+Q sometimes restored 8 tabs, but closing with the X or Close and exit only opens the homepage. Restore Previous Session is missing. The 8 sites are not in History. I cannot find sessionstore.jsonlz4. Need help using sessionstore-backups.

I live in the USA and have had access to the 50 GB free VPN for well over a month and it was working perfectly. This past week the icon disappeared from the toolbar and after upgrading to version 156 on a windows 11 PC running 25H2 it is still missing. I have looked in the customize toolbar and it is not available there as well.

9/19/2026 Firefox Version 156.0 (64-bit) for windows 11 up to date with Windows Updates. I often have 2,3,4 Firefox windows open, each with several tabs open. Sometimes, Firefox will just totally freeze, and I can't do anything more. ALL Firefox open windows and tabs freeze. Other windows/apps are fine, and working normally. Only Firefox seems to be affected. The only thing I can do is use Windows to totally close/end the Firefox application. It then closes all the Firefox windows. I can then reopen Firefox, and everything seems fine - but I have totally lost the open windows and tabs I was on.

This has happened across several Firefox updates. I do not think this happened prior to 2026. Maybe just since June 2026.

One Extension - Web Threat Shield

Thanks!

For the past 2 weeks now, every single time I search on Google on private browsing there would be a CAPTCHA. I tried troubleshoot mode but the same thing happened.

I'm trying to set up/complete two-step verification (2FA) for my account, but the Scan QR CODE isn't going through. i enter the code, but it doesn't get accepted, so i can't finish the process.