Firefox Community Forum

My Windows 11 computer crashed recently. Before restoring windows I was able to backup some data files. I thought that I had a Firefox backup, as I recorded a folder called “Old Firefox Data” It contained a Folder called “2eguguhi.default-release” of size 751 MB. It in turn contained 7,708 Files, & 2,269 Folders. When I re-started Firefox on my “fixed” Windows 11, It was a virgin with no History & no Bookmarks; my old configuration was lost. I tried to follow the advice Fro Mozilla Help But to no avail. It was not able to detect or recognise the Folder in “Old Firefox Data”

Am I Lost or can someone Help please.

Bill L.

When prompted Firefox does not load correctly, but once I get yahoo emails loaded I can access them. Can I uninstall & then reinstall firefox to try to get it to work. Will I loose all my emails? I’m still using windows 10.

My wife's old Windows 10 HP laptop quit working last week do to some Operating System failure while it was trying to do an update. It finally did a reboot and now it is useless, at least as it is! It will NOT complete the boot process after trying all of the options offered. All that I am able to is exit out of Windows to a "DOS prompt." I am able to get to the Mozilla Firefox folder and others contain within. The new Windows 11 laptop I bought her is working fine with a fresh Firefox browser installed about a week ago. What she wants is her web links, settings and saved passwords "copied" from the old laptop and installed on the new one! We have no idea how many there are to retrieve! I'm hoping that there might only be one folder that I can copy via "command line" prompt to a USB drive and move the file(s) to the new laptop the same way. Can anyone tell me what I need to know? Thanks in advance! Tim O.

Over the last 5 or 6 months, Firefox seems to have lost the capacity to remember my open tabs if my Mac is forced to restart. These open tabs are vital to my workflow. If this can't be solved, I shall have to migrate to another browser, which is something I do not wish to do.

My Firefox version is 147.0.4; my computer a Mac Studio 2025 M3 Ultra; my OS Tahoe 26.3.

Please advise.

I have upgraded my PC from Windows 10 to Windows 11 and my Firefox bookmarks have disappeared. I understand that Firefox keeps a copy of my bookmarks which appear each time I start Firefox, so how can I make them appear again automatically when I open Firefox?

Having seen 2 versions of Firefox on my computer,i tried to delete one version and unfortunately both have gone. is it possible to recover the old version with bookmarks and passwords?

I worked with a tech support team to update software on my computer. After the update they did a clean up on my computer today and I lost all of my firefox passwords. How can I recover these passwords?

Thanks. Bruce Tremont

Приветствую ! Я решил перенести аккаунт Firefox на другой компьютер и сменил пароль на новом компьютере данные по новому паролю в аккаунте пропали .Могу я как то восстановить данные в аккаунте с новым паролем .Заранее благодарен.

The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem.