Showing questions tagged:

Normal FireFox browser gives error and fails but Private browser opens

When I try to log on to a particular web page using my password, I get an error page. When I do so using the Private browse function it works. Following is the error I ge… (read more)

When I try to log on to a particular web page using my password, I get an error page. When I do so using the Private browse function it works. Following is the error I get: {

 "callId": "019a1701de257ed0a722da6257f2896e",
 "errorCode": 403005,
 "errorDetails": "Unauthorized user",
 "errorMessage": "Unauthorized user",
 "apiVersion": 2,
 "statusCode": 403,
 "statusReason": "Forbidden",
 "time": "2025-10-24T16:16:29.758Z"

}

Does anyone have any great ideas??

Solved 2 1 183

Disabling Tab Restore on OS Restart

I'm trying to stop Firefox from restoring tabs after I restart my OS. So far, I've done the following: Disabled `Startup > Open Previous Windows and Tabs` Disabled … (read more)

I'm trying to stop Firefox from restoring tabs after I restart my OS. So far, I've done the following:

  • Disabled `Startup > Open Previous Windows and Tabs`
  • Disabled all extensions
  • Confirmed I do not have a `user.js` file
  • Set `browser.sessionstore.resume_from_crash` to `false`
  • Set `browser.sessionstore.restore_on_demand` to `false`
  • Set `browser.sessionstore.resuming_after_os_restart` to `false` (It was already set this way.)
  • Set `browser.sessionstore.max_resumed_crashes` to `0`
  • Set `privacy.clearOnShutdown.openWindows` to `true`
  • Set `browser.sessionstore.max_tabs_undo` to `0`
  • Set `browser.sessionstore.max_windows_undo` to `0`

(I've since reverted the last two and the extension changes after they didn't work.)

So far, Firefox will not restore tabs on application restart (manually closing and relaunching) or on crashing (after sending SIGTERM/SIGKILL), but it still restores tabs after restarting the OS (if I allow the OS to kill it during shutdown). I've seen a couple suggestions to disable history completely, but I do occasionally refer to my browsing history, so I'd prefer a less-drastic approach. Ideally, I just want Firefox to treat the first launch after a shutdown as a normal launch and not apply any special behavior. Any help would be much appreciated!

System: Fedora 42 (Workstation Edition) Running Firefox 144.0.2 on Gnome 48.6-1.fc42

Solved 1 1 155

Sound has disapeared in Firefox

I am running Firefox 144.0 on kubuntu 24.04.3 LTS I have lost sound on Firefox. I have opened the same sites in Chrome and the sound is working fine. It's only in Firefo… (read more)

I am running Firefox 144.0 on kubuntu 24.04.3 LTS I have lost sound on Firefox. I have opened the same sites in Chrome and the sound is working fine. It's only in Firefox. I have tried several sites including Udemy, YouTube, and radio programs, no sound from Firefox. The problem started in the middle of a Jit.Si session. All of a sudden the sound disappeared. I thought that restart Firefox would help, then restart the computer would help. But the problem has continued. The speakers is turned on the volume is up, just not a sound from Firefox. What to do?

Solved 3 1 969

Add Shortcut Button Missing

I noticed recently that my 'Add Shortcut' button has disappeared. I've been through other articles and they were of no help. I have 4 rows selected for shortcuts so there… (read more)

I noticed recently that my 'Add Shortcut' button has disappeared. I've been through other articles and they were of no help. I have 4 rows selected for shortcuts so theres no reason for it to be gone.

Solved 2 1 253

Can't print in Firefox 144.0

I am unable to print after upgrade to ver 144.0 The print preview just spins. I can print these web pages using Edge. This same thing happens with new version of Thunderb… (read more)

I am unable to print after upgrade to ver 144.0 The print preview just spins. I can print these web pages using Edge. This same thing happens with new version of Thunderbird. Can't print email either. John Stark

Solved 5 1 248

storage of data

I was asked to 'Allow Chatgpt.com to store data in persistent storage'. Would that add on the risk of having my data being more exposed and kept by stakeholders not of my… (read more)

I was asked to 'Allow Chatgpt.com to store data in persistent storage'. Would that add on the risk of having my data being more exposed and kept by stakeholders not of my own choice?

Solved 1 307

immediate tab closure for Elsevier websites

When I go to (seemingly) any Elsevier site, the browser tab immediately closes with no error or explanation. An example is this site: https://www.sciencedirect.com/scienc… (read more)

When I go to (seemingly) any Elsevier site, the browser tab immediately closes with no error or explanation. An example is this site:

https://www.sciencedirect.com/science/article/pii/0167508784900164

Solved 15 234

Firefox 144 Installed Today; Clobbered all of my Tabs. "History" is No Help

Something very bad happened to me today (11/3).... Firefox 144.0.2 was installed on 10/30/25, and everything has been fine until today. I don't know why or how, but AL… (read more)

Something very bad happened to me today (11/3)....

Firefox 144.0.2 was installed on 10/30/25, and everything has been fine until today. I don't know why or how, but ALL of my OPEN tabs (of which I have many--and have it fixed so they always re-open when Firefox starts), ALL went away.

In reading conventional steps to recover such from sessionstore-backups, those instructions sounded straightforward. However, even though ALL FIREFOX PROCESSES were ended, I could not copy the contents of the sessionstore-backups folder nor could I delete anything--EVEN THOUGH I am the owner.

Even after providing Admin perms.

I could get rid of profiles.ini, which initially proved diasterous, because then Firefox thought I was brand new, so ALL of my passwords saved through Firefox these many years, went "poof".

Fortunately, I was able to get that back, but I still cannot get all of my tabs back, and conventional instructions to do so aren't working.

After recovering from my heart attack for initially losing my passwords, I am breathing a little better right now, but it sure would be nice to get all of my open tabs back again. I don't know why I am not able to manipulate the files within sessionstore-backups. I think if I could eliminate the files in that folder EXCEPT for upgrade.jsonlz4-20251027123126, which possesses a 10/29/25 date, these should be the open tabs just before the 144.0.2 installation, and all should be right with the world, once more.

I have performed/examined many steps offered under this category, but most assume I can copy them elsewhere for safe-keeping and/or removing all but the one I want Firefox to "use". Because something is preventing me from doing this, though, I am being stymied in what ought to be the solution. As a test, I was able to copy files from a much older profile--so I can prove the basic steps SHOULD HAVE worked. Unfortunately, I cannot do the same with THE (more recent) folder in question. I can't get rid of parent.lock, either (and I have ensured no Firefox processes are running via Task Manager).

Repeatedly.

Something else is at work, here. Any help or assistance from community experts would be most helpful.

Thanks very much in advance.

-MG

Solved 5 130

Youtube layout

The layout of YouTube was different from before. In the past, after the YouTube video was over. The MAIN WINDOW within YouTube page would showed two rows of recommendatio… (read more)

The layout of YouTube was different from before. In the past, after the YouTube video was over. The MAIN WINDOW within YouTube page would showed two rows of recommendations. Now there is only one row with great amount of black-out space at top and bottom. Any suggestion to tune it to the usual two rows?

Locked 1 174

Mozilla message says I'm running Win 10, but my system says Win 11

Earlier I logged in to Firefox to pose a question. Checking email, I had a notice from Mozilla that my account was used to sign in: Firefox on Windows 10 / United State… (read more)

Earlier I logged in to Firefox to pose a question. Checking email, I had a notice from Mozilla that my account was used to sign in: Firefox on Windows 10 / United States (estimated) / Thursday, Oct 23, 2025.

Does Firefox think I'm using Win 10??? I checked my computer and it verifies that I am running Win 11 with all updates.

Call me confused. Or is this a non-issue? I ask because I'm trying to get into a member website and after I login, it takes me to a page that is for new signers ... not an existing member. Has happened several times.

Thanks,

Ron

Solved 4 129

New Firefox

Hello there, today was released a new version of firefox. downloading it not only crashed my computer, it also removed all my history and bookmarks. is there any way t… (read more)

Hello there, today was released a new version of firefox. downloading it not only crashed my computer, it also removed all my history and bookmarks. is there any way to revert this?

Solved 2 71

Urgent: Lost All Synced Data After Firefox Account Password Reset Without Recovery Key

Dear Firefox Support Team, I am writing to urgently request your assistance regarding a critical data loss issue with my Firefox account. Recently, I reset my Firefox acc… (read more)

Dear Firefox Support Team,

I am writing to urgently request your assistance regarding a critical data loss issue with my Firefox account.

Recently, I reset my Firefox account password because I could not remember the original one. However, I was not informed or clearly notified during the reset process that resetting my password without a recovery key would result in the permanent loss of my synced data, including saved bookmarks, passwords, and other browser data.

Unfortunately, this Firefox account was the only place where I had stored this important information, and I had no separate backup of the data elsewhere. I understand that for security and encryption reasons, data cannot always be recovered—but I believe users should be more explicitly warned during the password reset process.

Locked 1 183

Firefox

Firefox detected a potential security threat and did not continue to myccp.ccp.edu. If you visit this site, attackers could try to steal information like your passwords, … (read more)

Firefox detected a potential security threat and did not continue to myccp.ccp.edu. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

Solved 1 105

Remove autofill email addresses from FF Browser in Sequoia

When I sign in to the NY Times (for example) I get a dropdown of autofill email addresses. Some are even mistyped addresses or bogus addresses I've used to access webpage… (read more)

When I sign in to the NY Times (for example) I get a dropdown of autofill email addresses. Some are even mistyped addresses or bogus addresses I've used to access webpages that'll take any email address. I cannot delete these. I've tried shift-delete. These email addresses cannot be accessed via Firefox preferences: autofill screens do not list email addresses but only the physical addresses that I've saved.

(And then, of course, the minute you submit any email to the NYTimes it immediately creates an "account" and starts sending you subscription offers.)

Solved 2 233

Profiles not showing up in burger menu

I have Firefox installed on both my desktop and my laptop. On my laptop, I am able to create and manage profiles; however, on my desktop, there is no option available in … (read more)

I have Firefox installed on both my desktop and my laptop. On my laptop, I am able to create and manage profiles; however, on my desktop, there is no option available in the menu (the hamburger menu) to do so.

I have verified that both devices are running the latest version of Firefox, which includes the profile management feature, but I am still unable to access it on my desktop.

Solved 1 208

Cannot change billing method

I have an issue changing my billing information for Firefox Relay Premium. When I click on "Manage payments" I always get to a web page stating "Invalid billing informati… (read more)

I have an issue changing my billing information for Firefox Relay Premium. When I click on "Manage payments" I always get to a web page stating "Invalid billing information". See also screenshot attached. The arrow keeps turning and I cannot select anything on this web page to change my billing method.

Cheers Olaf

Solved 2 56