Firefox Community Forum

In my nightly broswer Codeberg opens once when I click to go to a repository the tab keeps loading and does not stop and can't accesss anything then. In Firefox I don't have that problem at all only in Nightly then in Nightly my Facebook emoji's does not show but again in Firefox it does.

Hello!

I use Nightly 154.0a1 (2026-07-10) (64-bit) on Windows 11. I'm trying new VPN feature from study and the VPN itself is working, but the location setting is completely broken. I have only two options for location Recommended and United States. Whenever I choose United States, nothing changes and my IP is always from subset of CIDR 63.245.208.0/20 which is geolocated in London, UK. I tried multiple IP addresses (by restarting VPN) and all of them are geolocated in London. Running traceroute also suggest that all of them which I get are located in the UK. Is there a way to fix this?

My Firefox browser (nightly snap 154.0a1 on Ubuntu 24.04) has been misbehaving lately (~2 weeks now) and I'm at a loss why.

First, when I scroll using the mouse wheel, the scrollbar continuously shoots back to the top constantly during scrolling.

Second, when I type text in a Google box and hit enter key, it drops to the next line - like one would expect in a text processing application.

Third, when on YouTube, trying to rewind/forward video instead starts navigating to clickable links. Of particular note (see the attached screenshots) is the appearance of text (such as "Skip navigation" and "Volume" to name a few) - something I've never seen before.

This happens with a new profile as well.

Now, I know that nightly will sometimes have broken items but this is a weird one. I at one time thought the batteries on my wireless keyboard could be responsible but new batteries (confirmed new with a digital multimeter) did not change that.

I'm on Ubuntu 24.04 LTS fully patched. Anyone here with ideas on what it might be?

Hello Im using multiple firefox edition on my PC from beta dev to nightly, and recently in nightly and only nightly I've spotted strange issue that appears as window in window screenshot attached, outer x to close or maximize window does not work only the inner and mostly goes after F11 full screen and then return to normal. Troubleshoot mode and restart does not change or fix this.

Out of nowhere, the Nightly browser starts with Windows & a new profile. This forces me to go to Settings to uncheck the setting for Nightly to start when I start Windows.

First, the setting "Open Firefox automatically when your computer starts up" should never, ever be checked by default.

Second, this has happened on both my Win11 computers with Nightly. What is concerning is that somehow a Nightly update out of the blue created a brand new profile--I have a specific profile I use for my Nightly installs--with the start with Windows startup setting checked. This should not happen even with an alpha app like Nightly. The update process should only be using the profile running when the update process takes place.

This forces me to run the Firefox Profile Manager to delete the profile that was created out of the blue.

Honestly, if this is not addressed, I will have to stop using Firefox, Beta & Nightly. I have Firefox since it first was pre-version 1.0, but I refuse to use an app that thinks it is acceptable to make default a setting like Start with Windows startup.

The title sums it up. On May 25, 2026 Round Cube email will not allow me to re-enable Dark Reader. It had been working up to that point. I disabled Dark Reader just to see my email without it, then attempted to enable it. Can not. Interestingly, Round Cube in Microsoft Edge will still allow Dark Reader. So, Firefox Nightly the issue?

Hi, when I want to zoom in to the website page, I cant seem to find the horizontal scroll, thus I cant see the left side of the page that I zoomed in. Please make the horizontal scroll available. Thank you.

It works in Chromium 139 , Firefox ESR 128 , and latest WPS Office. HOW IF A CHINESE USER CANNOT TYPE CHINESE IN LATEST NIGHTLY (Debian forky/sid ,Linux kernel 6.16-rc7-amd64)

Hi Team, I am using Linux Mint 20 Cinnamon. Cinnamon version is 4.6.6. The issue is that I was browsing and by mistake I selected one tab then dragged it for sometime and then released the tab but that created a new window and now the old windows are not visible in ALT + Tab function. The windows are showing in the Firefox task manager and also the box icon in the top right corner in that "open tabs". Now I am not able to even change the window or able to access the opened tabs. Attached the screenshot and as you can see in that there are total 4 windows showing in firefox and one as active but in the bottom on the firefox icon you can see its only 1 window. How can I access the remaining 3 windows? Found one ticket (https://support.mozilla.org/en-US/questions/1477845) in this the recommend solution does not work. When I try to click on the window 1 tabs then I do not get any response. I tried both the solution but none worked.

Thanks for the help in advance. @Mozilla team member is seeing please check and fix this bug if possible.

Hello Team, I am having issues with Mozilla Firefox and Nightly Browser sound. If I use another browser, the sound is perfect. I have been using Firefox for years now and am accustomed to it, as well as Nighty, for all browsing needs.

Regards, Roopesh

He said its down to some update which for some reason I dont have but in the attached image, he is able to add his own wallpaper in nightly but I am not for some reason. Would love some support

• • When I click application menu or add-ons icons, the menus open to the left of the screen and this is very annoying and inconvenient. Please advise on how to correct this after the update.

I really do not like the new menu / toolbar in firefox nightly. I guess I hadn't really noticed the changes until now. But it takes up half the page of my browser. Who thought this was a good idea? - to put it smack dab in the middle of the page?! Not me, that is for sure! Ok. So can we see a normal toolbar/ menu bar/ and optional toolbar at the top of the page, please? I like things the way they were. With various options to add buttons and pages or things that we need?? My toolbars were stacked appropriately in roles, with everything I needed on them. And they were always in the same place. Not moving around like toys on the floor. Please, please bring back the old toolbars for this old cranky punk chick. Thanks!! Love Firefox, stop messing with it. 💗💗💗😸😸

I have this message after returning from nightly version to the stable one: ``` Using an older version of Firefox can corrupt bookmarks and browsing history already saved to an existing Firefox profile. To protect your information, create a new profile for this installation of Firefox. ```

Youtube seem to be having problems with video decoding, previous frames seem to be displayed from time to time. for ex, this video: https://www.youtube.com/watch?v=dFhzMEnCEhY

The same profile works on Firefox 134.0b8 (64-bit) without problems, but not on nightly. If I just disable `media.hardware-video-decoding.enabled` and restart, then the problem goes away on Nightly.

Enabling/Disabling my user customizations don't seem to affect it. Enabling/Disabling addons don't affect it. Using a new empty profile also doesn't affect it, the problem persists. I tried deleting "gmp-widevinecdm" folder and redownloading it, still didn't solve the problem.

I seems to be some sort of regression, it used to work before a couple of days ago. Please fix, I hope the information I provided helps, as I like having hardware acceleration.

I also tried to update the display driver. nVidia Driver: 31.0.15.5176 now 32.0.15.6636

After new update (135.0a1) my youtube vids starts with audio but NO actual video. Also it timeline constantly extends (like when you move cursor to timeline is extends verticaly and get more light color) and back to grey state.

I tried remove all addons, clear cookies and private windows. Also previewr of video rly buggy and just spams images(?)