Firefox Support Forum

Unattended software (kiosk) here.

Sometimes (so rarely that I cannot reproduce in dev) the client sees this error screen: "Firefox closed unexpectedly while starting..." (see image in attachment)

Sometimes when rebooting the error goes away and Firefox starts normally.

Sometimes even when rebooting the system - this vertical error screen appears, and one solution is to reinstall Firefox, but I'd like not to (if not necessary) or at least programmatically detect the issue and perform the needed actions.

QUESTIONS: How to programmatically detect (bash i.e.) that this error window is present and get rid of it properly? Or, how to (for debugging) force that screen to appear (to force that broken state)?

PS: I'm running Firefox using:

nohup firefox -P ff_custom_profile -new-instance -private-window -kiosk "$url" > /dev/null 2>&1 &

Thank you for any assistance or insight

I have just upgraded the OS on Mac Mini with the M1 chip to Sonoma (14.5) I am running Firefox 126.0.

Now it seems that I have more than one problem since the upgrade. The browsing history in my sidebar is not current. It is running about a day behind.

I reported earlier that the type on my LinkedIn is only out 7 pt when my settings have the minimum size at 14 pt.

Somebody please help. I'm afraid to do a refresh because I don't know what it will do to my banking settings.

Ellen Perless

Firefox uses about half a gig on my disk, that's: '~/.mozilla' and '~/.cache/mozilla' can that be reduced? Either some setting that limits disk use or even a manual deletion of ancient stuff?

Dear all, I would like to know how to disable the automatic insertion of the tag
in a text editor in Firefox. I am using Froala, and I am experiencing this only in firefox. Chrome and Edge do not add this tag automatically. Thank you for you support. Kind regards, Cristiano

Hi,

I am performing a use case in my organization. I need the hash (sha1) of all Mozilla Firefox releases published till the latest one.

I need for all 3 OS- Win, Linux and Mac.

Can anyone help me how/where can I find this?

I was advised to use the Authenticator.cc extension for my Firefox browser on Windows 10 PC, I can't get it to run. It downloads but will not then do anything. I can't get the icon into the menu bar, I can't scan a QR code, it just will not perform. Why not?

I have recently been getting an error message when I open Firefox saying "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". This has been happening since I clicked on a mail in Mail to unsubscribe from a spam/phishing mail list, which seemed to result in me installing Firefox Private Browsing, which I had never subscribed to. I have tried uninstalling Private Browsing but there is no way of doing that. I have even uninstalled and then re-installed Firefox completely but I still have the same problem. Because of the problem I have now lost all my bookmarks and history, and am unable to create new bookmarks and history. I have been on the help forums and seen that I can Disable Private Browsing by going through my anti-virus (Avast), which I have not yet tried because what I would really like to achieve is uninstalling and not having Private Browsing on my Start menu, rather than simply disabling it. Anyway, would disabling it solve the bookmarks and history problem ? Can anyone give me the solution ? Thanks. As you may gather, I am not very techno so you would have to give me the idiot's version of any instructions or advice.

Dear Firefox Support,

I am writing to report an issue I am experiencing with Firefox Stable (v.126.0) when attempting to access the URL https://ibb.co. This URL is supposed to redirect to https://imgbb.com, but instead, I encounter the following error:

Secure Connection Failed An error occurred during a connection to ibb.co. PR_CONNECT_RESET_ERROR

This issue seems specific to Firefox Stable, as I am able to access the URL without any problems on chromium-based browsers (Chrome and Arc) and Safari. Additionally, the URL works correctly on Firefox Nightly (v.128.0a1).

I have attempted several troubleshooting steps, including:

   Disabling all extensions
   Using private browsing mode
   Clearing cookies and cache
   Restoring settings to default

Unfortunately, none of these methods have resolved the issue.

Could you please assist me in resolving this problem? Any guidance or further troubleshooting steps would be greatly appreciated.

Thank you for your support.

I am running a Mac Mini with the M1 chip. I recently updated the OS to Sonoma (14.5) from Monterey and find that the type on Linked In is tiny, only about 7 pt. My FF is 126.0. My minimum font size on Firefox is set to 14 pt. If I make it larger, like 20, Linked In is readable, but all my other sites are too large and hard to navigate.

Your automatic reader thinks I'm running 10.5. I've never run 10.5 on this Mac.

LI says it is a Firefox problem, which it is, because the site reads fine on Safari.

I know that there are sites which don't work on Firefox, like Chase Bank, which is a drag. Please don't tell me that LI is another one.

Somebody, please help.

Ellen Perless

Firefox 126.0 on Sonoma running on my Mac Studio does NOT sync passwords but DOES sync bookmarks. Firefox will not save passwords nor will it load passwords from a .csv file Under Sonoma SYSTEM SETTINGS and PASSWORDS (after entering mac password) shows the website passwords there, but the passwords DO NOT show in Firefox. Restart of Mac or restart of Firefox does not fix this.

I uninstalled then reinstalled Firefox. I was able to recover my bookmarks, add-ons, and login information. But I do not know how to recover by pdf files. Are they gone for good?

Good afternoon,

I am not sure if the topic is the right one I choose.

My question/complaint: recently websites, although mostly websites from my bookmarks, seem not available or existing. Mostly after a few minutes and a new trial, the website comes back as if nothing was wrong. Could it be the last update from Firefox? I never had these "problems" (a big word for minor inconveniences) before and I use Firefox at least during the last 15 years.

Thank you in advance for your answer.

Best regards, Rien de Vos

Hello, when making a purchase on a website with Mozilla, after entering the security code received on my mobile phone, the bank's virtual keyboard does not appear to enter the security code of my online bank. thank you for your response. Sincerely

Hello, Whenever I try to open something on Firefox, for example, the Library, I get the message "Mozilla Firefox (Not Responding) and it hangs with no immediate responsive action. I click on any Firefox button or tab and I get the same message and I get the blue little circle and I sit and wait about 30 seconds or more. The page or tab eventually works but it hangs for 30 seconds or more. It is frustrating. Please help.

Thanks, Tricia

As title- Cannot download for example webm format, but jpg is okay. cannot install any addon, theme or anything. DRM didnt install as well. i was trying reinstall, refreshing browser, rebooting.