Firefox Community Forum

I lost all my data after installation of new firefox. I have lots of important data in that profile.

I forgot the password to sign in and when I reset, a new profile was created for me and all my data are gone.

Now, I even know the original password. I did not know, I will lose my data. How can I get my data back? Please help.

I want to play m3u8 link but they always download and save it. I try to find advance settings but it seems no settings for it. How can I stop download specific file extension? And if it can play, play it? Thank you.

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?

A radio station https://www.wfmt.com/schedule/ that has run successfully until today in Firefox no longer does, There is momentary blip of sound but then silence. It runs fine in Chrome. Another station continues to run successfully in Firefox

I am using Win 11, Microsoft Powertoys > Fancy Zones to manage the screen space on my 5120 x 1440 monitor. I also have System > Display > Multiple Displayers "Remember window locations based on monitor connection" enabled.

Any program I have besides FF will load up exactly where I had it last. FF shifts I am guessing 8 pixels to the right (or left, as this occurs if I close FF on the right side of the monitor.) If you look at the screenshots, the "opened at default" picture shows what FF looks like when I open it. You can see the xulstore.json file shows the screenX position is -8. If I manually type in 0, close out FF and reopen it, it will still shift back to the right a bit even with the .json still saying 0

How do I do one less thing when I turn the pc on and have FF open exactly as far left as possible instead of shifting over to the right?

Hi,

I searched the web for deleting the item "Weitere Lesezeichen" in the sidebar. I found only solutions for the firefox 85. In Firefox 85 should be a field for hiding this. Although in Firefox 150 it can`t be hided or deleted. I don`t need and I don`t want this "Weitere Lesezeichen". Any solutions?

Bonjour, A l"allumage de mon ordinateur,ce matin, quand je clique sur l'icône "Firefox", une fenêtre sans mes onglets d'hier C'est une page m'invitant à télécharger Firefox. Je n'ai plus accès à mon historique et, n'ayant plus accès à mes mots de passe, j'ai du mal à ouvrir mes sites préférés. Merci par avance de votre aide. Annie Le Drévo

since v150 came out ive been having an issue where i get a flash of white on start up if i have Homepage and new windows as Firefox home with a wallpaper... i have re-installed firefox and tested it as default and it still happens. seems the wallpapers have a delay till it displays properly.

An error occurred during a connection to tpz.sashacare.com. SSL received a record that exceeded the maximum permissible length.

I've done recent updates (May 2026) and after having 3 updates in recent months, I still have difficulties with my video programs (both Zoom and "One-click) slowing down during my work which is 100% virtual. How can I revert to an earlier version where this was resolved, please!!??

This has happened randomly on several different computers, both windows and ubuntu linux. It just now happened on my Win 11 computer. Was viewing the CNN news site and FF suddenly closed, without a "FF crashed..." message.When I clicked the icon to reopen it, it came up with the home page group of tabs instead of reopening the windows and tabs that were opened when it crashed. Worse, none of the previous months of history shows up and recently closed tabs and windows are both greyed out.

Is there a way of recovering the history of what I was working on at the time of the crash and what the hell is causing this? I am close to dumping FF and going with something else as this is highly annoying.

help me restore my open windows. this has also happened a couple times before and its very frustrating when i have tabs open to read/refer to later or am in the process of reading and then i have to try and find them all again.

Recently passkey function stopped working for Roboform which requires entering password for each login event. Roboform support indicates the issue is being caused be Firefox function. Please advise on this issue. Thanks,

I use Firefox frequently as it is the most useful browser I have. I want to keep a clean desktop and do not have icons on my desktop. Every time Firefox updates, it places an icon on my desktop. I do not want it there and delete it. It is very, very annoying to have to delete every time there is an update. How can I keep that from putting it on my desktop? If the thinking is that if it gets put there, I will use it, that will be what keeps me from using it. If I cannot find a way to stop it, I will remove the program altogether and figure out a way to do the things I currently do with Firefox. Please let me know how to accomplish keeping my desktop clean.

video downloadhelper is not saving the videos to vdhelper folder any longer. how do I change the folder location for only the video downloadhelper. its going straight to download folder.

thank you for your assistance.

Bruce Caress

May 7, 2026, 15:17 CST

Hello, I've been watching MSNOW at 4pm eastern and after about half an hour it crashes. I get a message to send a report and restore the tab. I restore the tab which works for maybe ten minutes and crashes again. I am using Windows 11 on a new computer. I'd appreciate some assistance. Thanks. Bruce Caress

Moderator note: This question has been edited to precise Firefox and OS version, based on the crash reports.