Firefox Support Forum

Suddenly! Cannot open Firefox because of the error message: "Firefox profile missing or unavailable."

I found the profile in my Library.

Looked for internet advertised "Firefox profile manager," but could not find it. Only one I could find was obsolete.

Thank you.

Hi for a while now, few months Firefox crash like crazy on my PC

Sometimes it would just crash at start, and refused to open Sometimes tab start crashing, and eventually firefox crashes

Common sites where i see the crash happens are cnn.com and nba.com

I usually restart my PC , refresh firefox or reinstall it to get rid of the crashes but this is very tiring , very tiring

I am sure its something on my PC that causing the conflict, because even reinstalling doesnt entirely fix it

But i have no clue what it could be

Hi!

I had two Firefox windows open at the same time, one with a lot of tabs open in it, and one with only a few open. I was going to close firefox in order to restart the computer, and closed the window with many tabs in it first, and then I closed the window with only a few tabs in it. The next time I started Firefox, only the window with a few tabs in it loaded, and not the other window in which I had the vast majority of all opened tabs. And I can't find any way to restore the tabs from the other window either. I have looked under the History menu, but I don't see any option to restore a previous session there, so I'm guessing that Firefox thinks that it already has restored the previous session when I opened it up again.

So, how can I restore the tabs I had in the other window, with a lot of tabs opened?

So i downloaded firefox from the website... it doesnt even open! i tried to reinstall which didnt solve the problem.. then i uninstalled and installed it from the MS Store... it opened once and i used it for a day, but then the next day.. it again crashed and didnt open.. i didn't have extensions nor any themes. PLease help.. i used it everyday in win10... but in win11, edge or chrome is the only option.. pls fix it ASAP

Hi! Some days ago I started experiencing problems to load Google service webpages. For example sometimes youtube tells that there is a connection problem, when loading gmail I get " has experienced a network protocol violation that cannot be repaired". When I use other browser I can access to that services with no problem. I am in linux, and I have tried disabling all the add-ons, starting in "safe-mode" and rebooting my computer. At the beginning everything works fine, but after some time starts failing. I have tried with different Firefox versions, and the problems persists.

since yr last update i have lost all my tabs, settings, and pinned tabs, what is happening can you help me stabilize this and i can not get any o\lfd them back from history as every time i open firefox, a second window opens and then keep cycling thru all the pasty websites i have visited and i cant stop it

Last night my Firefox 94.0.2 was hacked. When running Firefox, it would lock up my desktop. It disabled Norton Security, it disable other installed security software, and it disabled Windows System Restore. The hacker put up a message claiming to be Microsoft Support, with a phone number to call for help. This was a scam. I ran Firefox refresh, and that removed the hacker's program from Firefox, but then I had to do a full repair of my Window's installation. To protect my system, and prevent this from happening again, I added "xpinstall.enabled = false" into about.config. Please let me know if this will prevent a web site from installing a dangerous hack into Firefox, or if there is something else that I need to do. I have used Firefox for years, and have never encountered this problem before. Firefox is my favorite browser, but I am now afraid to use it. Please advise me what to do. Thanks, Jim

my pc had friend so when i got a new one i lost all of my firefox data, how can i get all of it back so i was forced to start all over, i lost all my, bookmarks, tabs, history and saved passwords

Howdy, fellow Firefox aficionados.

I'm running FF on a Windows 10 Home 64-bit desktop. Some time ago, I suddenly could no longer open Firefox because it couldn't find my Profile. So, I attempted to create a new one, but it would not allow me to do so.

"Changes Not Saved"

   "An unexpected Error has prevented your changes from being saved."

[See uploaded Image]

More than likely, either I, or one of my system maintenance programs wiped some data or folder. I have deleted Firefox and reinstalled it with the latest version, but this dilemma persists.

Thanks for reading my post and if you reply, a big Thanks!

I have checked against other web browsers and only happens in Mozilla, within the last few weeks. I checked on multiple computers, still having the following problem. I use workspace by go daddy for my online email. I click on compose and the expected window pops to create the email message. When I get to the subject line. every time i use a space bar after typing in a word, the cursor automatically moves to the beginning of the line. This happens each time I type a new word in the subject line. NO other issue in to, cc, bcc, or main message body. This only happens at the end of the subject line. If i type in the middle with characters already on either side, the space bar does not reset.

Go Daddy tech support says it sounds like a browser problem

Thank you, Dr Steve

I can't find anything about a compromised Firefox update while using the browser when you go to help and let the browser update itself. It seems you've been hacked because I can't otherwise explain the firefox background update 308046BoAF4A39CB, which is been detected by my systems. I obviously have more information about this if you like, but I see nowhere how to report this properly. This is the first time this has happened to me, at least as far as I know and so far I've only detected the Tr.Gen threat on my Windows computers. I would like an adequate response from Mozilla on how this could happen and what the repercussions are plus how to avoid this in the future. I've been using the Firefox browser on all my systems with various operating systems and would prefer to keep using it, but not if your own updating process is comprimised. I also think it's idiotic that I can't upload a bigger screenshot than 1024 kb because my very relevant picture is 3084 kb in size.

Sincerely,

J.L

I am a Firefox user for 5 years now and never had such bad experience before. Since 2022 February 8 my Firefox application keeps crashing all the time. The browser opens and I can open webpages as well, but shortly after opening the websites, most of the pages result in Firefoxing crashing. I have latest version of Firefox and I have checked in safe / troubleshooting mode as well, but it did not help, Firefox still crashes. I have submitted a lot of crash reports in the last two days, the latest one has this ID: bp-94f69edd-95cb-40e3-84de-33cb20220210.

Please let me know what to do, as currently I cannot use Firefox and without a fix I have change to another web browser. Please also note that the same webpages that crash under Firefox work without errors in other browsers.

I'm uploading changed webpages to the internet on a daily basis, using Firefox. I'm Using Firefox version 100.0 now and I have discoverd a problem with version 100.0 . From Firefox version 99.01 and downwards, this problem never existed before. The refresh button in Firefox 100.0 ( Ctrl+R ) no longer works good anymore! Sometimes it works good, the other time it's not working correct anymore, you will not see the latest uploaded webpage on the internet. The only solution to this problem is bij closing Firefox and restarting it. Only then you will see the latest uploaded webpage on the internet. Please have a serious look at this annoying problem in version 100.0. This problem can only be discoverd by people who are uploading new webpages to the internet, not bij the regular internet-users/visitors.

Just started Crashing one day after startup. Ive tried a full fresh install of Firefox and still keeps happening. Ive updated my graphics driver for my graphics card and updated firefox to last updated.

bp-e743b9a2-b08c-410e-bcc8-811970210610 6/10/2021, 3:00 PM View bp-4248c041-8701-4141-a53b-9f3bf0210610 6/10/2021, 3:00 PM View bp-30875c3e-4f56-4434-aa37-a55380210610 6/10/2021, 3:00 PM View bp-6253aac0-3823-4c95-b7fa-79fb80210602 6/2/2021, 2:04 PM View

My firefox is slow but not real slow but enough to notice a little bit. It does take a minute to first load. It has crashed but only when I have clicked the close Firefox " Red X"

It really does a crazy thing.  If I have VLC open playing a file, or I am in Firefox on YouTube If I change to new tab or click a link my sound on the Desktop crackles and it's like everything comes to a halt in VLC and Firefox. Or just in Firefox on YT.   I am not sure if this is a hardware issue with my speakers I have already moved the speakers plug to front and no change it still does it.  The speakers are old I bought them way back in 2005.  Do speakers go bad?  I don't know why it is doing this. 

My other issue is cleaning my computer. You see Firefox has over 8,000 bookmarks I have collected since around 2006-2008 or even earlier. I don't know how to remove the ones I don't need anymore. I guess it has well over 250-300 folders and loose bookmarks My guess around 1500+ not in folders. Some folders will scroll a few minutes. I want to removed some folders I don't need anymore and want to know if there is a way to store others in case I need them later I can load them and keep some on Firefox? Many of these book marks are related to research I have done and I can't just trash my bookmarks and start over.

Windows 10 Firefox 89

When I am on a google play store app page, the green download button doesn't work.

What happens: 1. Click the green button 2. The round google processing-icon appears on the page briefly 3. Nothing happens, page does not render a pop-up stating the app will be installed on my device

What I tried:

• Turn off ublock: problem persits
• Disable all add-ons: problem persits
• A clean portable version: problem persits
• Tried on a clean portable google chrome install: everything works (app get's installed)

Problem started 4 or 5 days ago...

I am running Firefox portable 64bit on windows 10. I can just install from the android playstore app, but I need it to work on my desktop like it has always worked.

I someone could help, I'd really appreciate this.

Thanks.

I am getting more & more frustrated and exasperated, as simple browsing has become tortuously slow, with many sites taking forever to load, or only partially load, or have to be refreshed a couple times, to finally get it to load. And videos constantly freezing up, despite lots of free RAM, and a very high-speed internet connection. I assumed whatever was causing this would've been addressed in the last update, or two, but no, it's only getting worse.

I'm using Windows 10 and have installed FF 92.0 as the default browser and recently installed MS Works 9.

When I click on a link within a document it does not open. The cursor does change to a hand & it does say "CTRL +click to follow link https….", but that doesn’t work. However it does turn on the Underline function in the word processor.

Clicking on links has worked for years with Windows 7 and MS Works 7. I don’t see any settings in Works 7 or 9 that control this.

Is there a FF setting that enables this?