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Re-Installing Mozilla - Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

I shut down my PC without closing the Firefox brower tabs and I started getting this message the next time I re-booted and tried to start Firefox. --- "Firefox is already… (read more)

I shut down my PC without closing the Firefox brower tabs and I started getting this message the next time I re-booted and tried to start Firefox. --- "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window." ---

I read thru the different support forums and tried various answers/suggestions - no luck. Bottom line, I have uninstalled the browser, deleted all the old Mozilla folders from the machine and downloaded the .exe to try to re-install the browser. However, the installation crashes at about 70% completion and I still get the message listed above. I am running on Windows 10 and the PC is up to date with all patches.

I would appreciate if anyone can help me figure this issue out.

Asked by ankrnl01 1 year ago

Answered by ankrnl01 1 year ago

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Firefox disappeared completely after a Windows 10 update

Hello, I just restarted my PC after a Windows 10 update (Windows Update). Launching Firefox from the task bar no longer worked (link removed). So I launched Firefox from … (read more)

Hello, I just restarted my PC after a Windows 10 update (Windows Update). Launching Firefox from the task bar no longer worked (link removed). So I launched Firefox from the start menu. A completely blank version of Firefox appeared on the screen, as if I had just installed it. No more favorites, no more extensions, no more customization. All Firefox installation files in the AppData directory are dated today. How can a Windows update remove a Firefox installation? Is it possible to recover favorites and bookmarks? Thank you for your answers. Regards,

Asked by Eric 1 year ago

Answered by FredMcD 1 year ago

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Transfer Firefox profile from old Windows 7 PC to new Windows 10 PC

I want to transfer the profile from an old PC running Windows 7 to a new PC running Windows 10. I've copied the old profile to a USB stick. After much searching I've foun… (read more)

I want to transfer the profile from an old PC running Windows 7 to a new PC running Windows 10. I've copied the old profile to a USB stick. After much searching I've found the profile created by the new installation, but it seems to appear in two folders: AppData/Roaming/Mozilla/Firefox/Profiles, and AppData/Local/Mozilla/Firefox/Profiles. Should I simply substitute the old profile for both instances of the new profile? NB This message is posted from a different platform (Mac) Thanks

Asked by DavidMW 1 year ago

Answered by cor-el 1 year ago

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ZIP Files Downloading as PDFs

Background: I'm currently tutoring full-time, and the site I use allows tutors to download the session afterward as a .zip folder. In the past this has been incredibly he… (read more)

Background: I'm currently tutoring full-time, and the site I use allows tutors to download the session afterward as a .zip folder. In the past this has been incredibly helpful, because it allows me to review my lessons and improve my planning.

Current Issue: For some reason Firefox now appears to be misinterpreting these ZIP files as PDFs. When I begin the download, Firefox gives me the option to either open (as PDF) in Firefox, or to download. At this point (before any download occurs) Firefox has already labeled the file as a PDF. If I open it in Firefox, obviously it doesn't work (being a .zip folder.) If I download it, Windows Explorer usually lets me explore it as a .zip folder, but recently, about 10% of the files I download (even if I never open them as a PDF) still download as a PDF and are therefore inaccessible.

Fixes: I've tried downloading instead of opening with Firefox. This works about 90-95% of the time; not sure what the issue is. I've tried re-assigning the file type in Windows Explorer, to no avail. I've adjusted Firefox preferences (from "always ask" to "use Windows Explorer.") I'm not sure this will help, but will try.

Any advice? I hate to sound fussy, but I'm pretty meticulous about saving my lessons and hate losing that much data on my students. While I can save each file independently, it takes much longer. Thank you!

Asked by ajic.ajic 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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How to save MP3s instead of Mozilla saving them as HTML

Mozilla now (did not before) saves MP3s as HTMLs when I try to save an audio file. How do I change this action? No MP3 option appears in the applications list. (see attac… (read more)

Mozilla now (did not before) saves MP3s as HTMLs when I try to save an audio file. How do I change this action? No MP3 option appears in the applications list. (see attachment) I would appreciate any help. This has got me stumped.

Asked by thinkbp 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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the code execution cannot proceed because vcruntime140_1.dll was not found

So I was cleaning out my SSD of a bunch of junk files and I think I might have deleted a file Firefox needs as when I open Firefox it seems to just blank with the search … (read more)

So I was cleaning out my SSD of a bunch of junk files and I think I might have deleted a file Firefox needs as when I open Firefox it seems to just blank with the search bar and when I try to go to say YouTube nothing loads. So I tried to do a fresh redownload of Firefox and the installer just this error saying "The code execution cannot proceed because vcruntime140_1.dll was not found" can someone help me get Firefox working properly again?

Asked by HelloThere 1 year ago

Last reply by FredMcD 1 year ago

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Firefox is dead

I downloaded and installed the firefox app and nothing happens. No menu. No tabs. The word "firefox" appears in the upper left corner of my screen and a "." appears under… (read more)

I downloaded and installed the firefox app and nothing happens. No menu. No tabs. The word "firefox" appears in the upper left corner of my screen and a "." appears under the app, indicating that it is open. The screen "blinked" momentarily when I opened the app. I am a longtime user of Firefox and this same thing happened this morning when I opened the app, which I uninstalled, and then downloaded and installed this new app. Same problem.

Asked by Jim Dollar 1 year ago

Answered by Terry 1 year ago

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How to disable "You have chosen to open this file" dialog for zip files in firefox

Hi Team, I want to disable to "You have chosen to open this file" dialog for zip files but i am not able to disable it. I have looked for some solution in google search t… (read more)

Hi Team,

I want to disable to "You have chosen to open this file" dialog for zip files but i am not able to disable it.

I have looked for some solution in google search that did not help.

Please help me on this.

Asked by inzmamulhaqansari25 1 year ago

Answered by JohnTake 1 year ago

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How/where to get Firefox 78

I am running El Capitan and need Firefox 78. I went to a site offering 78 as a download, and version 91.5 came down. Site offering 78esr, same thing. Went to https://ftp.… (read more)

I am running El Capitan and need Firefox 78. I went to a site offering 78 as a download, and version 91.5 came down. Site offering 78esr, same thing. Went to https://ftp.mozilla.org/pub/firefox/releases/ and was unable to figure out how to download 78. Clicking on 78.0 just led to more links that got me nowhere. Is it possible to download version 78 from this or any site? Thank you. heaton5

Asked by heaton5 3 months ago

Answered by jscher2000 - Support Volunteer 3 months ago

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Stop auto-download for Version 98.0.1 (64-bit)

Hi, new updates on Version 98.0.1 quite a hassle for me. It auto-download all my files even when I just want to view. Is there any other way to disable this feature? I op… (read more)

Hi, new updates on Version 98.0.1 quite a hassle for me. It auto-download all my files even when I just want to view. Is there any other way to disable this feature? I opened Setting>Download but there is no disable button or checkbox for that. Please help me. Thank you in advance.

Asked by miszluuna 2 months ago

Answered by Terry 2 months ago

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I cant download anything

This issue is occuring for couple weeks now. When i click download nothing happenes. No matter what i try to download, it wont work. I do my downloads in another browser … (read more)

This issue is occuring for couple weeks now. When i click download nothing happenes. No matter what i try to download, it wont work. I do my downloads in another browser :D Why is that happening? I did reset firefox by the way and there were couple downloads and then it broke again. I have this add on saves backup automaticly and here we can see there is something wrong because it cant save the file.

Asked by Hüseyin 1 year ago

Answered by FredMcD 1 year ago

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How to Undo Firefox Refresh

So recently my Firefox crashed (as it does sometimes when I sort my bookmarks) and I accidentally clicked refresh Firefox, thinking that it would just refresh everything … (read more)

So recently my Firefox crashed (as it does sometimes when I sort my bookmarks) and I accidentally clicked refresh Firefox, thinking that it would just refresh everything like a restart does. Instead, it deleted everything - my logins, my cookies, my extensions - and I don't know how to get it back. I tried looking online for the answers, but none of the solutions I found worked (https://support.mozilla.org/en-US/questions/1195682 was the closest one that had some semblance of sanity) and the closest I figured was that I needed to either create a new profile with different settings I could import from my Old Firefox Data or put the Old Firefox Data in the Profiles folder which doesn't seem to be working, as there are always two other folders within. I tried creating new profiles with the Old Firefox Data as the basis, yet it doesn't work. In addition, I like my old profile and don't exactly want to switch, although if that is the cost of retrieving my data, I will take it. Any solutions please? I rely on my computer quite often, and I don't want to be handicapped for a while. My computer is also the recent updated Mac version, if that helps.

Asked by amylastlast123 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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Firefox keeps trying to update and to install the Software updater even though I opted out

Every time I try to open Firefox it asks me for permission to install Firefox Software Updater. I then say no and Firefox opens with a notification to update to the lates… (read more)

Every time I try to open Firefox it asks me for permission to install Firefox Software Updater. I then say no and Firefox opens with a notification to update to the latest version. I opted out from updates but the only option available is for the Firefox to ask before updating, there is no option to opt out definitively. Is there any solution to stop notifications and installing attempts?

Thanks in advance

Asked by vascocc95 11 months ago

Answered by vascocc95 11 months ago

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Cannot make JSON files downloaded automatically

I'm downloading lots of JSON files on day-to-day basis and I'm tired of selection download action because FF doesn't have a "remember" checkbox for it (see image below). … (read more)

I'm downloading lots of JSON files on day-to-day basis and I'm tired of selection download action because FF doesn't have a "remember" checkbox for it (see image below).

You can reproduce it: go to any site that allows you to download jsons, e.g. https://petstore.swagger.io/#/pet/findPetsByStatus

If you execute any request there will be a `Download` button If you click it you will see a popup similar to attached one: no "remember" checkbox.

How do I make it remember my choice?

My FF version is 77.0.1 (64-bit), Windows 10 2004.

Asked by pzixel 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

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XML Parsing Error

I'm getting the XML Parsing Error message on Firefox after the latest update. I have tried every fix I can find in the help guide and the community section but none of th… (read more)

I'm getting the XML Parsing Error message on Firefox after the latest update. I have tried every fix I can find in the help guide and the community section but none of them have worked. So far I have:

- completely uninstalled Firefox and everything related
- emptied cache of Chrome (which is what I am using to re-download Firefox)
- deleted everything in Windows Temp folder
- re-downloaded a brand new download of Firefox directly from the site
- run a full clean re-install of Firefox (same error message)
- restarted the computer (still getting XML Parsing error)
- unable to start Firefox in safe-mode as I don't have the button on the browser to do so.

Any other suggestions would be greatly appreciated as Firefox is my favourite browser and I want it back!

Asked by tellemonstar2002 1 year ago

Answered by tellemonstar2002 1 year ago

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Firefox wont load pages, Get VCRUNTIME140_1.dll Not Found Errors

I got a new Lenovo Laptop and cant get Firefox to load a webpage. Here's what happens and what I've done 1. I install Firefox and during install get error below, VCRUNTI… (read more)

I got a new Lenovo Laptop and cant get Firefox to load a webpage. Here's what happens and what I've done 1. I install Firefox and during install get error below, VCRUNTIME140_1.dll Not Found. I then click OK and Firefox Installs but when I load it no webpages will come up just a black screen no indications it is even trying to load the page, no error message. It does nothing. Cant even open Google.com 2. I looked in MS forums and they say to install Visual C++. Did every x86 and X64 version I could find. Still have the problem even after uninstalling Firefox and reboot. 3 Have McAfee, and took Firefox off the Safe list then put it back on. 4. Went to try and find the file but can't on a reputable website. So I looked for this file on my Dell Laptop and Asus Desktop. Both have Firefox installed and it works fine. Get this, NONE of my other two computers have that exact file name anywhere. VCRUNTIME140_1.DLL! They have 140.DLL and a few other 140.dll with different variation but no 140_1.dll? So how does Firefox run on 2 other computers without this DLL but not on this new one? They are all Windows 10 Would appreciate any help. Seems to be a Firefox or Lenovo Issue just not sure. If anyone know how to get the DLL from MS let me know.

Asked by Mark M 10 months ago

Answered by cor-el 10 months ago

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Amazon Fire Tablet

I was gifted an Amazon Fire Tablet to use for an upcoming hospital/rehab stay. I use Firefox on my desktop and Android phone and want to use it on my tablet, but the Ama… (read more)

I was gifted an Amazon Fire Tablet to use for an upcoming hospital/rehab stay. I use Firefox on my desktop and Android phone and want to use it on my tablet, but the Amazon store doesn't have the app. Not sure I trust the Amazon Silk browser, but I may have no choice. I am not a tech savvy person! I don't know the difference between a bit, byte, or buttercup. If there is a way to install and use Firefox on my tablet, and sync with other devices, I would like to do so. Please explain how to do it as though you are talking to a 6 year old (who probably knows more about this stuff than I do, anyway). Thanks. rennylloyd

Asked by rennylloyd 1 year ago

Answered by Václav Trpišovský 1 year ago