Firefox Community Forum

Presently 142.0.1 (64-bit) installed; previous updates/downloads had no problems.

Now, however, going to https://www.firefox.com/en-US/?utm_campaign=SET_DEFAULT_BROWSER and attempt a download results in this (image).

Any solution to this?

Thank you.

For past few weeks, Whenever I try to update FFX on windows 11, it fails. It takes me to another screen and tells me to download Firefox. When I try to download it , it aborts with this message.

"download.mozilla.org has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site."

To download Firefox with new version I have to use another browser but no choice. Then with new version of Firefox, I have faced the same issue of update and used same approach to update firefox to a newer version.

This error appears for some google sites as well but the same occurring for firefox download site itself is not understood.

Ajay

Hi there.

The original problem is described here: https://support.mozilla.org/en-US/questions/1472503 ( Also the solution I found.)

Jaws and James seem to have left the building.

This problem first occurred with the update from V 135.0.1 to V 136.0 . Currently on V 136.0.4, and every update has exhibited the same behavior.

I have the same issue with two laptops, running Windows 10. Each has been through a few update cycles, and the "Restart to Update" always fails.

So, I close FF, watch for the Resource Monitor to quiet down, and reopen FF.

When I go through this sequence, I notice that the screen will flash once VERY quickly before opening the home page.

FF seems to function normally otherwise.

Thanks for being there,

greg moehl

Windows 11 Pro on Lenovo ThinkCentre. I switched to ESR a while back, when the regular and ESR versions coincided. All updates since then have worked fine, until now.

When I allow Firefox to update to 140.3.1esr from 128.14.0esr, then the Firefox browser no longer works at all. It comes up, but entering a URL (by typing or bookmark) does nothing and goes nowhere, so I can't use the internet at all.

I had to use Macrium Reflect to restore my system drive to an earlier time to get back on the internet, using version 128.14.0esr, which lost some recent bookmarks, etc. I have tried this twice, with the same result.

Now, a couple of sites no longer work because they say the browser isn't current.

What can I do about this? I hope I don't have to switch to another browser, because there are Firefox extensions I use all the time. However, I can't use a non-updatable browser indefinitely, because more sites won't work.

Can I fix this?

Thanks for your help, AnneF

Hello, I'm having some problems with updating firefox. It started a few months ago that I got a Pop-up every time I started Firefox about needing to update it. But when I click on the prompt to update it, it leads me to this website: https://www.mozilla.org/de/firefox/new/?reason=manual-update , and after clicking on the download button I get to this site for about a second: https://www.mozilla.org/de/firefox/download/thanks/ after which it loads this site: https://download.mozilla.org/?product=firefox-stub&os=win&lang=de which my browser can't connect to (aka just gives me the standard error message as if you entered an invalid URL). Today I got this website pop-up when starting Firefox: https://www.mozilla.org/de/firefox/welcome/21/ which leads to the same outcome as above. After that I tried to update Firefox by going to the menu -> help -> about Firefox, which searches for updates but then tells me that I have the newest version installed already??? Even when I try to manually install a new version through this site: https://www.mozilla.org/de/firefox/all/ I still get the same result. Please somebody help me out here!

have no idea what this topic falls under but getting the update browser error code 99,999 again after restarting the damn computer when it just froze while I went out for 15mins I am updated so have no clue what to do

wish sending a question or replying to the email was easy but even that is b/s also this deny person claims bug fixed but obviously not

My new Win 11 PC out the box with a Firefox installed on it, worked fine for 2 weeks then an update from you guys causes it to crash, it is stuck in a perpertual reboot loop as windows crash, close then the app restarts despite being told to close, only a reboot will stop it from trying to open and then cause memory leaks.

Also, when are you guys going to incorporate a "Roll back feature" for these situations, so that the older working version can be retrieved.

All my important logins are on firefox and your programmers, whatever they did have jeopardised my ability to access important accounts.

I best check my androind tablet hasn't updates or I will be up the wazoo without a failsafe... Well played Mozilla Devs...

using 64 bit Linux here.

I download an update, but it doesn't do anything. It constantly tells me I need to download an update. Currently using 133.0.3

I managed to get an update through Linux, but now I'm having trouble with Linux. I suspect I need to remove Firefox and reload it. I tried to do that one time but it didn't fix the problem.

Any help would be appreciated.

Jim

I use Firefox on a ASUS Vivobook running Windows 11. On April 1, it tried to update to version 137.0, but failed and led me into a update loop of sorts. I had to re-install Firefox just to force an update on it, and that worked for a bit. Just today, it decided to update... and led me into ANOTHER update loop, and it's saying that the "install failed" when I check the update history.

Is anybody else experiencing this bug, and is there a way to fix it?

Dear Firefox Support, My issue is with the browser I use 136.0.1 (64-bit). Select Help menu (Restart to update Firefox) I've preformed this task several times so far and I keep getting the something over as I click on Help menu. I restart the browser again however it is the same thing "Restart" again. What is my next step here?

Thank you, Dave 18 March 2025

For about the last 2 months, when I either get a notification that an update is available or I manually check for updates, both Firefox and Thunderbird are stuck in "Downloading updates -- 0 bytes" on 2 Windows 11 computers. Eventually, like a half an hour to an hour later, the update downloads and I can install the update. This has been going on for 2 months now. As a 20 plus year user of Mozilla and also a long-time financial contributor, this problem going on for 2 months is getting old. And yes, I have checked my antivirus and firewall. Is Mozilla aware of the problem and is there a solution?

HERE'S HOW I SOLVED THIS "SECURE CONNECTION FAILED" ISSUE:

Kept getting this error when attempting to update Firefox; didn't matter which browser I used; went through the forum postings and tried every this-and-that-and-this-and-that posted there; didn't work; finally --

i opened a $10.00 30-day hotspot account with Xfinity, and the download worked perfectly.

PROBLEM SOLVED.

How should I fix the frozen browser. Firefox updated ok from another user account on this computer, though Firefox has always updated for all accounts on the computer when updated from any of the accounts. The installer tool got caught in a loop to install until it froze the browser on the third retry. What should I do?

My version of Firefox is 108.0.1 -- I am running Windows 10 on a machine that Windows says is not capable of running Windows 11

My installation of Firefox resides on my D: drive. It uses quite a bit of space for cache and other things on my C: drive but it starts and runs on my D: drive.Now I am forced to update, but I can't get the installer to recognize an installation on the D: drive and update it. Instead it makes a new installation on my C: drive and I lose my appearance customizations, history and bookmarks.

I have never believed and cannot accept that an application absolutely MUST reside on the C: drive. It's lazy programming (something I used to do for a living). I can't believe Mozilla programmers wrote an installer that insists that Firefox must live there, so what am I missing? How do I tell the installer to find and update my existing application?

Thanks for your help. I feel as if I am missing something that ought to be obvious.

I have been getting asked to update my firefox for the past 2 weeks now. Everytime, it asks me to update my firefox. I update it, and then when I quit firefox (restart computer) and re enter, it asks me to enter my admin details to be able to install a helper tool to finish installation.

Attached is a video of that happening. Essentially, I have downloaded the latest version directly off of mozilla website, but it continously asks me to update & install helper tool.

When credentials are entered, it doesn't do anything. When I press cancel, the application does not respond and need to force quit. Either way, I cannot access firefox everytime it asks me for an update.

Any help would be appreciated.

Link is to my dropbox of video since I cannot upload it to the post: https://www.dropbox.com/scl/fi/2ihkfij4zk5m74g1rj97l/Mozilla-Firefox-helper-tool-community-post.mov?rlkey=t7hreld7va3bd25putv562hca&dl=0

I have received the 14 Jan Mozilla Update warning a few times now, and I have tried to update Firefox, but it seems my computer sytem is now too old - iMac 0X El Capitan 10.11.6. PLEASE NOTE, I have an iMac from early 2009 and I am now unable to update my system to any other Mac version.

I lost all my saved pages and bookmarks recently when I tried to update Firefox using the instructions online. Unfortunately it was only after updating removed old Firefox that I was then informed that I would not be able to use the new version with my computer. I was able to resurrect my old Firefox from a backup, and would like to continue to use it as I am very happy with Firefox as a browser.

Are there any work-arounds that would allow me to use Firefox on my iMac - it is working perfectly and has just been cleaned and I've had a new hard drive installed - it seems incredibly wasteful to have to buy a new computer! Yours hopefully!

I have OLD imacs. The one I'm on now says 2017 and according to some homework, the latest version of Firefox I can run on IOS 10.13.6 is version 115.

WHERE do I FIND that?

I went to mozillas page and there was only one place to update firefox. I went ahead and tried, then got a pop up saying to restart.... did. Then got some helper thing suppose to download, put in my computers password, and NOTHING seems to happen. Nothing at all. Downloads like this usually involve a spinning wheel, or bar showing progress, SOMETHING. I didn't get anything.

Restarted firefox, and every time I go to about firefox to see if it updated, the same pop up shows up. (Will attach a screenshot of it.)

If I look under applications/firefox, it has NOT updated at all.

I'm guessing it's updating to the latest greatest version which MY computer cannot run. SO where do I find VERSION 115?

So I need to update my Firefox Browser to 128 BUT somehow "Updates disabled by your system administrator." and as I am the only user I have never set up an administrator.

So I have had a look and I don't understand most of what I am reading.

So about:policies.... DisableAppUpdate true So how do I change that? I have looked at Reg Editor but have no idea what I am looking at.

It took me a long time to update to Firefox 121 because I did not like some of the changes Mozilla did to it like spacing between Bookmarks in the dropdown so to update again is a big thing for me. Attached as much as I think is relevant. Any help will be much appreciated.