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Hi,

I've been using firefox for a while on this computer now, but this morning I was hit with a popup saying: "Windows cannot find 'C:\Program Files\Mozilla Firefox\firefox.exe'. Make sure you typed the name correctly, and then try again."

I have so far tried every fix I can find (which aren't many for this glitch), and none have worked. I have tried uninstalling and deleting all folders related to Firefox, and the new install still gives me the same error. My OS is Windows 10, and I have not had any problems with Firefox before this morning, nor have I made any changes to the files or anything of the sort. Just tried to run it and it gave me this.

I am at my wits end a bit with this. Help!

Hello,

I apologize in advance for my low level in English, I am a French internet user who has encountered a problem since this morning. I have Mozilla Firefox on Windows 10. So far, it has worked perfectly. However, I could see today, by turning on my computer that I could no longer access Mozilla Firefox. Indeed, when I click on it, I encounter this error message:

Windows did not find c: \ program files \ mozilla firefox \ firefox.exe. verify that you entered the correct name and try again

I do not understand why I have this message. When I go to C: \ Program files \ mozilla firefox I do have a "firefox" icon (exe application). but I clicked on it and it doesn't work. I would like to inform that by using avast, avast updated me mozilla firefox ... I repeatedly uninstall and reinstall mozilla firefox; I even turned off, turn on, and turn on the computer several times but nothing to do, it does not work.

Can you help me see more clearly please?

Thanks in advance.

Under Privacy and security I check to ask save logins and passwords. When I close FF and reopen the box is cleared and I need to recheck it every single time. Only happens on one computer

Windows cannot find C:\Program Files\Mozilla Firefox\firefox.exe I have tried all of the solutions I can find on this forum (downloading all of the free antimalware kits and scanning for malware and allowing my firewall to make an exception for FF) but these have not worked. Strangely I also cannot open any MS Office files either. Use Avast.

Good day to you all, I just opened up my computer, tried to load Mozilla, without any option to do so. I tried to go to the shortcut, only to let me know it the file firefox.exe cannot be found. I uninstalled and re-installed twice without any success. what to do?

when i tried to open firefox today, it said that it could not find c:/program files/mozilla firefox/firefox.exe. when i go to the file location it is there, but is listed as a .sig file? is that right? i have tried registry editor, uninstalling and reinstalling, etc. i have not done windows update 1909 because i did it before and things went all wonky so i went back to 1809. i don't know if that could have anything to do with it? is there a difference between just downloading firefox and i keep seeing "full version"...i am very confused. and fairly tech savvy. help, please. thank you.

Installed latest Firefox update. When desktop shortcut icon is selected get this message "Windows can not find 'C:\Program Files\Mozilla Firefox\firefox.exe'. Make sure you typed in the name correctly, and try again.' The program extension is there and when I click on that location get same message. I think my laptop has been hacked and I need to wipe the hard drive and reinstall windows. I have other desktop shortcut icons linking to apps that get same message, yet those applications are installed and worked in the past. Also when I opened Chrome it came up in Chinese language. The VPN app was not working yet it was yesterday. I have Avast virus protection, yet the scan showed no virus present. Do I have to wipe drive and reinstall Windows?

This morning, when I tried to open Firefox I got a message saying that Windows couldn't locate the file.

I originally just clicked on the icon on my screen.

I then tried going to the program file folder and opening by clicking on the exe file. Same message.

I tried downloading a new copy of Firefox.

The same message came up when I tried to open it.

I made Firefox an exception on my security software. No change.

Any ideas what to do next?

Ever since a random point in the middle of the afternoon today, Windows 10 has become completely incapable of running firefox.exe. I have done a complete reinstall multiple times, wiping any and all traces of Mozilla from my system before running the installer again. I have run antivirus scans, and attempted to start Firefox with my antivirus (Avast!) completely disabled. I even tried starting firefox.exe from the command line, using tab completion to ensure that the file existed. No matter what I do, I get an error message from Windows claiming that it can't find firefox.exe, even when this is the result of double-clicking that exact file. This does not happen for any other software, including the portable version of Firefox (which is useless, since nothing is saved and I need my addons). I'm beginning to think that this is the result of either an absurd mistake or deliberate action from Microsoft, as there has been more than one Windows update within the day, and I have noticed other weird issues like my desktop background occasionally just being removed from existence for no reason.

This problem happened yesterday, 9th June 2020. Apparently it has been caused by a Windows 10 update, according to some of the other answers to the problem I have seen. My desktop PC was working fine before and I have never ever had this problem in the many years I have been using Firefox. What can I do to rectify the problem?

Ao execuatr o firefox.exe mesmo como administrador o erro ocorre: O Windows não pode encontrar "C:\Program Files\Mozila Firefox\firefox.exe. Certifique-se que o nome foi digitado corretamente e tente novamente". Já utilizei o AVAST, o Malwarebytes, já desinstalei e reinstalei novamente e o erro continua.

I have been using Firefox on my new computer for 4 months with no issues. The machine is a Windows 10 64 bit PC. Today I got this message (Windows cannot find 'C:\ProgramFiles\Mozilla Firefox\firefox.exe'. Make sure you typed the name correctly, and then try again.) and continue to get even after uninstalling and re-installing 2 times. Is this a Windows S issue? Please help. Mark

ok so a whole bunch of us had issues with firefox refusing to start after an update to avast cleanup premium. what worked for me was moving my mozilla file from program files to program files (x86). and actually avast fixed their problem very quickly. when i tried to move the mozilla file back to program files however, i get the following message: "your firefox profile cannot be loaded it may be missing or inaccessible"...so i'm just wondering if leaving the mozilla file in program files (x86) will cause future problems with updates or anything else. can i just leave it there or should i try to fix the profiles issue?

Since I updated to 77.0.1 firefox has for unknown reason has concluded that there is a system administrator which has disabled updates. It says so in setting (topleft) and in about firefox (instead of update button). I have been able to change all other settings that I know of. I have also refreshed the browser once, disabled all addons once, and deinstalled it to reinstall the latest version once.

Is there a solution for this bug?

I used Firefox and then shut my laptop down. I turned my laptop on after a few hours and received the following error message:

"Windows cannot find 'C:\Program Files\Mozilla Firefox\firefox.exe'. Make sure you typed the name correctly and then try again."

As advised in an earlier post, I ran Malwarebytes and re-installed Firefox. But I'm still getting the same message.

Thank you in advance.

Since today (6/10/2020) I can't run Firefox on Windows 10. Windows says it can't find the route to access, but even if I go to the path and double-click the .exe file, it still says it can't find it. I'm using Windows 10 in spanish, so there's some sort of alias for C:\Program Files\, but it should still work when executing the .exe directly. I've tried reinstalling, uninstalling and reinstalling and uninstalling, deleting my profiles and reinstalling, all to no avail.