Firefox Support Forum

Hello, I need help, it is not possible to open Firefox. After opening, the window closes itself again, a new profile was created, but the problem is still there. I am very unhappy about this. I didn't load a new extension, didn't use new antivirus software. Firefox has already been uninstalled and reinstalled. The problem is not solved. I've also cleaned Firefox a few times, but the problem still persists. There are no crash reports as Firefox just closes and doesn't crash. I can start safe mode. I am sending the Troubleshooting information.

Thanks for your help, Firefox is the best browser! Greetings Silke

Dear All:

Suddenly FF starts but shows only a new tab without any content. I can fill in a URL but no reaction. Settings doesn't open. Close tab through X Restart FF. no new tab but message: FF is already running but is not responding. The old FF process must be closed to open in a new window. Click to close. a new empty tab pops up without starting FF manually. Close through X Restart brings the same message as above - no window. Have to end FF in Task Manager.

Uninstalled and reinstalled three times - no change.

I'm using Windows 10 and Avast One, Firewall checked - is open for FF.

I appreciate your comments and help. Best wishes Henning

My ability to access saved passwords on regular sites I visit is lost each time I turn my laptop off. This means each time I log onto Mozilla I have to reset Privacy. This does not happen on Microsoft Edge. As I would really like to use Mozilla I would like to sort it out.

regards, Andrew

Hi,

I have set Firefox to delete every cookie when I exit. However some websites use cookies for dark mode. My question is this : can I make it so Firefox continues to delete every cookie but save only some specific cookies For exemple, linkedin uses a dozen of cookies and two of them are used to store value for dark mode. Can i save only those two ?

Thanks in advance

when reopening closed tabs it doesn't open last closed tabs, it only opens closed tabs in the window you are using. so if you have closed a window it doesn't reopen like it does on chrome

ok so ive tried everything and from what ive seen firefox has a sudden spike in cpu in a random proccess and stops working before firefox kills it off and everything goes back to normal

one place where it happens consistently is the sign in page on ebay. the only fix ive found is opening firefox in troubleshoot mode

before you ask, ive reset everything on firefox. brand new install of it too. nothing on this version of it. still happens. its not the plugins nor settings

please help me im not the only one having this issue

Hi - my BitDefender Internet Security found this Trojan.GenericKD.62058384 in my firefox profiles folder - C:\Users\david\AppData\Local\Mozilla\Firefox\Profiles\v6jicbrz.default-release-1662311998698\cache2\entries\E4A4EB628D5AE50B559489046BF17891EBE92F04=>(gzip)

Is this a false positive? This cache is nearly 1GB in size, are all the files needed?

TIA davidj

I'm getting this on most of my websites that i try to access from Firefox. MSN, google links from searches almost making this browser unusable. It says i cannot by pass security. IT may have blocks from my company as well. It works on edge and chrome so why not firefox?

Hello! Could you help me, please? I forgot my main email name that i used for firefox account. How can i restore it? I tried 2 my emails and both of them is empty, no tabs, no apps, no bookmarks.

I need to install Firefox in this computer. Is not working, I need this to play my Farmville2 is still no work. Please do something, I need this. att. Raquel R Orlang

So today I wanted to try FF Containers, because I have service user to manage O365, my normal company user and my personal user.

Now I open make.powerapps.com in container dedicated to this site I log in with one of these users everything is ok, but during first sign-in I am not asked even for password for specified account, I just enter email and then I am redirected and signed in. I have disabled "Allow Windows single sign-on for Microsoft, work, and school accounts". When I want to access portal.azure.com in another container, I am automatically signed in with user from previous container dedicated to powerapps.

I especially logged out of all containers and removed all cookies from FF before submitting and it is still happening

Also checked Windows "Internet options", I do not have any of these sites in "Intranet sites" and Level for all zones regarding to User Authentication is "Prompt for user name and password" dunno know what is wrong.

I'm working on an iMac, Monterey 12.6 and using Firefox 105.0.1. In Settings, I can only choose to have downloaded files be saved in the Downloads folder. If I were to check the box "Always ask you where to save files", it won't fully download or will be sent elsewhere on the Mac hard drive. I tried reading other articles that dealt with changing True/False settings in Firefox, but I really have no idea how to do that and if it made it worse. How can I fix this properly so that when I choose to download a file, I can also choose to save it in a specific folder? I'm also not sure if the Applications choices (how Firefox handles various files) is incomplete or not working.