Firefox Support Forum

Alright, I use Firefox like normal, but sometime today it stopped working, I get "Your Firefox profile cannot be loaded. It may be missing or inaccessible" error, I looked it up using safari, followed every possible interpretation of the instructions to no avail, I deleted the profiles folder and file, in both cache, and application support, on both my user folder and global HDD folder, no fix whatsoever, I don't know why this isn't working (yes I checked the hidden files, I searched my entire HDD and found no results for anything remotely named "Profile"/"Profiles" and I don't know what else to say.

I have checked: Application support (on every user) & Cache (on every user)

I don't know what's up, I also reinstalled Firefox after deleting everything related to it and I just don't know.

I have read through the various post / solutions. I can nopt find the profile file on my hard drive. Up until a month or so ago was able to use Firefox on this machine. Now not.

How can I solve this problem?

I use a number of sites almost weekly for my business. I have been able to bookmark links on Chrome but when I try to do the sale for Foxfire, I get an error that these sites are not trustworthy and cannot be saved. How do I override this problem so I can save these bookmarks or do I need to go back to Chrome?

I have a new computer and I had previously saved a backup of the files of my Firefox profile. I followed the steps in this article: https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles but it didn't work, none of my settings or bookmarks are in place. The backup profile had a different name so I copied the contents and I used the default profile that was created instead of creating a new one. Why didn't it work? Does it matter that I'm using the same profile from the backup on a different new computer as well?

Running OS 10.13.3 and had the latest version of Firefox running as my default browser, auto-updating. on 3.11.2018, I started getting the missing profile error. I followed several support threads with this issue, like https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible. I could not find or repair the profile.ini file or even find a Firefox folder in ~/Library/Application Support or ~/Library/caches. I had a Mozilla folder in the former but not Firefox. I also had Firefox synced to my Firefox Android browser.

I've reinstalled 58.0.2 a few times, nothing helps. I cannot find profiles.ini anywhere on my computer.

I've tried including the Troubleshooting information, but it doesn't work, I assume because I'm on Chrome?

Thanks for any assistance you can provide.

5/2018 - win10 pro, version 1703.15063.786

win-key-R: firefox.exe -P, -p or -ProfileManager, does not run profile Manager, but starts the browser.

firefox.exe is located under: C:\Users\USER_NAME\AppData\Local\Mozilla Firefox\firefox.exe

I tried opening cmd prompt at the above location ( C:\Users\USER_NAME\AppData\Local\Mozilla Firefox\ )

 to run firefox.exe by hand and all supported firefox switches only result in the browser starting.I

I'll try searching the registry for firefox.exe and see if anything is there.

Warmest Regards, Robert

I've tried the instructions "How to run Firefox when your profile is missing or inaccessible" at https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0ahUKEwjU9PHRn-TYAhUBI6wKHb5QAWQQFggzMAI&url=https%3A%2F%2Fsupport.mozilla.org%2Fen-US%2Fkb%2Fhow-run-firefox-when-profile-missing-inaccessible&usg=AOvVaw0G8EFm-I8kbu-4SlQ5WCpe

This doesn't help because it asks me to use the profile manager, but any attempt at launching Firefox or anything inside it produces the same result.

I've also tried replacing Firefox with a fresh copy.

The Profile folder is present in the usual place and I've verified that I have read-write permission on the folder and everything within it. 57.0.4 on MacOS 10.13.2.

I've tried deleting the firefox profile folders and launching the application. Still get the same error message. I tried deleting all firefox files, restarted and reinstalled and still get the same error message. I had Sophos Home installed and removed that and it still did not fix the problem. Also when i try to launch the profile manager via terminal it still just gives me the profile error message. This is extremely annoying.

I am on a macbook pro. I have deleted app and at, reinstalled, still get this error:Your Firefox profile cannot be loaded. It may be missing or inaccessible.

I rename the Firefox folder /Library/Application Support/Firefox and still I get this error: Your Firefox profile cannot be loaded. It may be missing or inaccessible.

In terminal I tried ot create a new profile using: /Applications/Firefox.app/Contents/MacOS/firefox-bin -P but receive this error in terminal: Error: Access was denied while trying to open files in your profile directory and this error pops up in Freifox: Your Firefox profile cannot be loaded. It may be missing or inaccessible.

I have deleted firefox and renamed the profile folder and init folder then reloaded firefox. Get the same error message can find profile folder. I have done this several times. Help - I love firefox and this is the first issue. I have downloaded the latest update just before things went south. RN

I gave up on Firefox due to its insistence that I could not stop it forcing updates on me no matter what settings I used in options as well as about: . I went back to IE9. Yes 9, as Microsoft couldn't repair Windows 7 to get a later version installed. Anyhow, after my motherboard became erratic and the replacement meant Win 7 no longer worked at all, I decided it was time to 'upgrade' to Win 10. After a complete reinstall of my software from scratch I realised just how bad Edge is and thought I might see how Firefox was holding up. I thought the sync could be useful and was getting on with it until 68.0.1! Since updating to this version automatically (the settings in options still do not work), it appears it is updating/resetting itself after every reboot. It restores the defaults and behaves as if it has just updated each time. Also after doing this for five times it appears to have broken ADBlock which advises it cannot work any more. I have had to uninstall it to get the tab to stop. So, as my questions were never answered previously, I'll ask again: 1. How do I get Firefox to stop updating itself? Options 'check for updates but let you choose when to install them' clearly still doesn't work as it updates regardless. 2. How do I get to keep my preferences. Having to go through them all each time Firefox updates is a pain. Surely it cannot be too much to create an ini file? 3. How do I convince Firefox not to keep installing version 68.0.1 over itself? 4. As Adblock no longer works in this version (I'm sure they are pleased with this result), what good alternatives are there?

Hi,

I use FEBE and Profile Manager, because I have tailored FF to my small screen, and personal needs, with many add-ons.

I recently made a new profile for FF42, and used FEBE to overwrite it with my customary profile settings.

All went well until I came on here to ask a question about my Thunderbird: Halfway through asking the question FF froze, and I had to kill it in Process Explorer. When I opened it again, the first tab just said 'connecting', and the whole thing froze as soon as that came up. Clearing all my caches with CCleaner made no difference. There was no malware detected by Malwarebytes.

I opened a previous version of FF (Thank g-d for FEBE!), and tried to overwrite the stuck profile with my current settings again, but it just froze, and had to be terminated from Process Explorer.

I tried to delete the corrupt profile in Profile Manager, but that just froze as well. :/

Luckily, it didn't break Profile Manager altogether, and, after reloading it, I could make a new profile for 42, and give it my preferred FEBE profile, and am using it now. As I don't know what corrupted the first 42, I'm a bit wary that this one might break too.

The corrupt 42 is still in the list in Profile Manager, but freezes everything when I try to delete it. How can I clean it out?

Thanks for any ideas as to what went wrong, and any tips on clearing the corrupt profile without damaging my good ones. Have I been locked out of that profile by something changing my permissions? I would have thought that MWB would have detected any obvious mischief.

Cheers.

tried most bookmark solution no change import/backup is broken? say unable to process file Places Database > Task: checkIntegrity + The places.sqlite database is sane + The favicons.sqlite database is sane > Task: invalidateCaches - Unable to invalidate caches > Task: checkCoherence - The task queue was cleared by an error in another task. > Task: expire - The task queue was cleared by an error in another task. > Task: originFrecencyStats - The task queue was cleared by an error in another task. > Task: vacuum - The task queue was cleared by an error in another task. > Task: stats - The task queue was cleared by an error in another task. > Task: _refreshUI - The task queue was cleared by an error in another task.

I have performed all the tasks as described in [Learn More]. I have Uninstalled my Security Software, uninstalled Firefox, performed Disk Clean up and Defrag Firefox and yet the problem persists. I prefer Firefox but if i cant resolved this I may accept my friends' recommendation and download Puffin.

I can not open Firefox, I am shown this message: "Could not get profile Firefox. The profile is missing or not accessible."

Even after uninstalling and reinstalling Firefox.

what do I do?

Win XP (why? because I like the interface) totally crashed and had to be reinstalled. How do I get Firefox to install on a drive other than the C drive? I want FF back in the same location that it was. (The files on Drive F are all still in place.) Also, I want to keep my old Profile and Add-Ons, etc.

I had Waterfox on my computer up until a few days ago. I got a bug. I uninstalled a few programs to reload. When I download waterfox and firefox, I get these messages: Your profile cannot be loaded. It may be missing or corrupted. I cannot find the profile manager in the files. I tried using "run". I have uninstalled it and did a clean boot and installed again: no good. I have windows 10 on an HP Notebook. I have tried most of the fixes I found for this problem but most of them are old fixes. I will appreciate any help you can give because I have found Waterfox is the best browser for me. My computer is a 64bit. Thank you, Marcy

I am trying to backup my password files ( key4.db and logins.json )

I am looking in the profile folder, and I have selected "show hidden files". Firefox is closed when I do this.

Nothing. Please help!

.... Related Rant - a priority of the devs should make a native import/export function to do this...

Firefox 62 Windows 10

My laptop died - but have FULL back up on ACRONIS cloud ... I want to find & restore my Firefox BOOKMARKS/ favorites etc. FIREFOX creates a PROFILE that contains all the data... BUT its hard to find!!??

I know location is USERname>AppData> Roaming>Mozilla>Firefox> PROFILES

BUT ... on my NEW Laptop when I go down through C:Drive hierarchy I cant see "AppData" If I search I can find ... BUT I cant actually locate via USER NAME.... Is this to do with HIDDEN FILES???

So when I go to my CLOUD BACKup I have the same problem. I can search & see ...but cant find in the hierarchy so I can recover those files & re-install on my new laptop... Any ideas where these hidden files are located?

Any ideas?

Thx for any help Cheers Keith

I had to reinstall my OS (linuxmint - debian edition - 201403). I left /home intact. After the process, I checked the profile -- nothing was changed. So I ran Firefox. But, my bookmarks didn't load (only the few that come with a new install). It didn't load the preferences either. I tried some tricks to get it to load my profile (i.e. create a new profile and copy the contents, Help>Troubleshooting Information -- Reset). Still no joy. I even tried running in a shell with -P <profile> for both the original and new profiles. Still no bookmarks (or anything from my original profile).

Also, on the Help>Troubleshooting Information page, I click 'open directory' and see my original profile.

What's wrong, and how do I fix it?