Firefox Community Forum

I feel like I've tried everything to stop Firefox from automatically opening when I start my Windows 11 computer.

I've checked: task manager, the startup folder in Windows 11 (shell:startup), The registry under "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run", Settings>Apps>Startup, and also in Firefox under Settings>"Open Firefox automatically when your computer starts up", and under "about:config">toolkit.winRegisterApplicationRestart (change value to false).

Can anyone tell me why Firefox is still automatically launching at startup of Windows 11?

When using Firefox on a Mac, how can we set the Mozilla VPN to one specific country for one tab only? There are instructions for doing so, but it's only applicable to Firefox for Windows.

Please add a Custom wallpaper options, Your browser has been the best so far i have used many browsers but i would love to have a custom wallpaper option and live wallpaper option too if possible just like operaGX has. Anyone can upload a wallpaper there.

Hi,

Version 152.0.1 running on Windows 11 Desktop (25H2 Build 36200.8655) on high end PC (Ryzen 9 7950X3D, 64GB RAM, RTX 4090) has a harder to use interface using Privacy and Settings. Previous versions allowed one screen access to clearing the browser cache of Cookies and setting the Customised Tracking Protection. Now I have to delete the browser cache then click on Advanced Settings, then Customise Tracking Protection so two more Clicks (menu Selections) to do what used to be available on the first screen after clicking/selecting Privacy and Security.

I can use the mouse side buttons to revert (Cherry device) screen forwards and backwards but it is still two extra actions. Used to do quite a bit of Beta testing for FastCad (Mike Riddle Evolution Computing) and this was often designed to keep any action only 2 levels deep. I also denested the (drop down) menus to get rid of the 'flyout menus' items in a drop down to simplify access. One of the better interfaces of any CAD program ever designed. Better than Rhino (which I use) with it's 1200 command icons to remember...even though that is far from the worst. Icons harder to rememeber than text btw.

To this day there are many programs that do not allow this denesting or those that put choices way down a string of menu picks. I find this approach very hard to decipher and not at all intuitive. Some like Creo from PTC are really difficult. Please revert the 'improvement' to the prior state so both clearing the cache and setting the level of Tracking Protection can be done from one screen. I use this several times a day to keep the chance of any unwanted software finding it's way into the box to a minimum.

I hope this is constructive criticism for what is a great product. Thanks all at Mozilla for their hard work and helping us users keep safe on the Web.

How to stop firefox from prompting me with this pop up (see attachment). I already removed the whatsapp app from firefox, it's still not working as it used to be which is to start whatsapp conversation directly in the web. It's annoying because the app is so easy to install but hard to remove. Firefox should do something about this.

Firefox used to close completely when I close the last tab. The last update broke that behavior. How can I get it back the way it was? This new behavior is sick!!!

Здравствуйте! При установке параметра "Настройки - Основные - Открывать Firefox автоматически при загрузке компьютера" в реестре создается запись HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run - Mozilla-Firefox-E385C0CFD98A494C: "путь-к-файлу\firefox.exe" -os-autostart Что за параметр командной строки -os-autostart? На на сайте поддержки Mozzila не нашел, ни интернет не подсказал. Я понимаю, что это автозапуск Firefox при запуске Windows. Но что конкретно делает данный параметр?

This might be quite "old man yells at cloud" of me, but oh my god I am so fed up of everything putting AI in as a "feature" for no reason.

1) No one asked for this. 2) It is bad at doing whatever it is designed to do. (It's not helpful, it's not even neutrally unhelpful, it's ANTI-HELPFUL.) 3) It is always on by default, or worse, impossible to turn off.

At the very least AI features need to be off by default, because it's rubbish.

Firefox is meant to be a bastion of sanity and safety in a world of exploitative techbros trying to steal our data and trick us into making money for them. So-called "AI" goes against this. Please, Firefox, be better.

As of 20th Nov 2025, here's how to turn off AI features. Go into about:config and set all of these to false (yes, you’ll have to copy and paste them one by one):

• browser.ml.enable
• browser.ml.chat.enabled
• browser.ml.chat.menu
• browser.ml.chat.page
• browser.ml.chat.page.footerBadge
• browser.ml.chat.page.menuBadge
• browser.ml.linkPreview.enabled
• browser.ml.pageAssist.enabled
• browser.tabs.groups.smart.enabled
• browser.tabs.groups.smart.userEnabled
• extensions.ml.enabled
• browser.search.visualSearch.featureGate

in addition to nuking AI, it’ll also speed up your browsing

I search but did not find any list of environment variables supported by Firefox. Is there such an official list, perhaps groupped by Firefox version, published somewhere?

On Firefox 128.14.0esr (build 20250811113756), Linux/X11, the setting browser.tabs.hoverPreview.enabled does change back to "true" every few days, or perhaps browser restarts.

How can I turn off tab previews reliably?

However hard I try I cannot prevent Microsoft Edge from being imposed as only choice for browser although I always want Mozilla Firefox. It always over-rides my attempts to change to Firefox

Hi Firefox Team,

I've recently explored the Zen browser and was really impressed by its modern look and feel. It offers a clean, intuitive interface and supports Mods, which greatly enhances customization and user control.

Is there any chance that the default Firefox could adopt a similar visual style and consider native support for Mods or enhanced customization features? I believe this could make Firefox even more appealing to a broader audience.

Thanks for your continued innovation and support!

How can I change the default app opened for mailto links?

There's guidance for Firefox on desktop on this issue, but not on mobile.

https://support.mozilla.org/en-US/kb/change-program-used-open-email-links

Please make life easy for normal people and add a big button in the settings "disable all AI". It is a pain to go through all the settings looking to disable it (if that is even configurable -- the fact thatit comes enabled by default feels like it is actively undermining my trust in what has been the best and most trustworthy browser for *decades*).

I do not need AI, I do not want it, I have severe ethical and security concerns about it. If you are hell-bent on adding it anyway, please make it trivial to entirely opt out.

I am unable to locate the setting Enable Link preview. I am using Firefox 142.0 on Windows 10 Home 22H2. This setting does not appear under Settings>General>Browsing. Are there other settings that are required to enable this facility?

background-image: url("file:///C:/Tools/FF/FFbkgnd01.jpg") !important;

Used to work, and does work in the regular version of the desktop app, but no longer works in the beta for desktop 135.0b9, says: "Could not load the image"