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Firefox Installer gives error "VCRUNTIME140_1.dll was not found"

I was cleaning out my hard drive and deleting old installs of Microsoft Visual Studio Redistributable packages, and I almost certainly deleted the one that Firefox relies… (xem thêm)

I was cleaning out my hard drive and deleting old installs of Microsoft Visual Studio Redistributable packages, and I almost certainly deleted the one that Firefox relies on.

I then attempted to start Firefox, getting the error, "The code execution cannot proceed because VCRUNTIME140_1.dll was not found. Reinstalling the program may fix this problem."

I uninstalled, following the clean install directions, and deleting the "Program Files/Mozilla Firefox/" directory.

Then, I ran the Firefox Installer, newly downloaded, and when running it, it gives the same error, "The code execution cannot proceed because VCRUNTIME140_1.dll was not found. Reinstalling the program may fix this problem." Selecting "Restore Defaults" has no effect either way. The installer then appears to complete in the background, and the Firefox directory is created, along with the executable.

When I run Firefox.exe, it seems to load the program, but any address I type in fails to begin loading. This includes websites (www.google.com) and help/utility pages (about:config). I'm therefore unable to change any settings within Firefox.

I then tried re-installing the "Visual C++ 2008" and "Visual C++ 2015-2019" packages in an attempt to restore that DLL, but that had no effect after repeating the same steps above (clean uninstall, re-install). Which VC++ Redist Package should I be re-installing? Ideally, I should be able to just get a copy of VCRUNTIME140_1.dll and place it where Firefox is looking for it.

Đã được hỏi bởi trevorawestphal 2 năm trước

Đã được trả lời bởi trevorawestphal 2 năm trước

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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 … (xem thêm)

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.

Đã được hỏi bởi Hüseyin 1 năm trước

Đã được trả lời bởi FredMcD 1 năm trước

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Keeper add-on download problem

I've just done a Firefox refresh and lost the Keeper (password manager) add-on. When I try to re-install it I get 'download failed'. Never seen this before and everything… (xem thêm)

I've just done a Firefox refresh and lost the Keeper (password manager) add-on. When I try to re-install it I get 'download failed'. Never seen this before and everything else works normally. Tried rebooting.

Đã được hỏi bởi stewart.m.taylor 1 năm trước

Trả lời lần cuối bởi stewart.m.taylor 1 năm trước

Firefox Can’t Open This Page

I just installed the latest Version of Firefox 101.0 for Windows 10. Then when I tried to download a pdf file from my yahoo mail I received the following message: "Proble… (xem thêm)

I just installed the latest Version of Firefox 101.0 for Windows 10. Then when I tried to download a pdf file from my yahoo mail I received the following message: "Problem loading page" Firefox Can’t Open This Page To protect your security, dl-mail.ymail.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window. Learn more… Open Site in New Window Report errors like this to help Mozilla identify and block malicious sites

So, in order to open the page I have to press "Open Site in New Window"

Please advice why happened this issue and how can be fixed.

Đã được hỏi bởi eladopoulos 2 tháng trước

Trả lời lần cuối bởi jscher2000 - Support Volunteer 2 tháng trước

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Firefox update check can't talk to the mothership (likely)

I run Firefox on a number of systems and two of my work computers seem to be unable to check in with the Firefox update servers to get updates. See image for the exact er… (xem thêm)

I run Firefox on a number of systems and two of my work computers seem to be unable to check in with the Firefox update servers to get updates. See image for the exact error message.

"Firefox can't update to the latest version. Download a fresh copy of Firefox and we'll help you to install it."

My suspicion is my network team is blocking my browsers from getting to the Firefox update servers but I don't know how to test it. One of my browsers is 77.0, the other is 77.0.1. Both of them give me the error in the image. Both of them insist I'm on the latest version of Firefox when I use 'Help/About Firefox' to check.

If anyone knows what data I should collect to get this figured out I'd appreciate it.

Thanks

Đã được hỏi bởi Tallbek 2 năm trước

Đã được trả lời bởi Tallbek 2 năm trước

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Does upgrade delete any exceptions, preferences or settings?

I keep getting reminders that there is a new release of Firefox. Does it delete any preferences, exceptions, settings, etc? Any reported bugs with it? Thanks. … (xem thêm)

I keep getting reminders that there is a new release of Firefox.

Does it delete any preferences, exceptions, settings, etc?

Any reported bugs with it?

Thanks.

Đã được hỏi bởi Sue 1 năm trước

Đã được trả lời bởi FredMcD 1 năm trước

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SHA256 checksum for Firefox downloads

In order to mitigate supply chain attacks it would be useful to have a checksum published so that we can verify the file has downloaded appropriately. This should be inc… (xem thêm)

In order to mitigate supply chain attacks it would be useful to have a checksum published so that we can verify the file has downloaded appropriately. This should be included within the release notes.

Đã được hỏi bởi linden1 1 năm trước

Trả lời lần cuối bởi linden1 1 năm trước

Unable to set Firefox as default in Windows 11

Hi, I'm trying to run and use Firefox as my default browser on Windows 11, but I'm running into some issues. The device is managed by Microsoft Family, which blocks Firef… (xem thêm)

Hi, I'm trying to run and use Firefox as my default browser on Windows 11, but I'm running into some issues. The device is managed by Microsoft Family, which blocks Firefox by default. I got around this by renaming "firefox.exe" to something else. This works to get Firefox open, but the modified filename is causing Windows to not recognize it as a browser. As a result, I can't get Firefox set as the default for http/https.

I've tried tools like SetDefaultBrowser from Christoph Kolbicz but no success, it is unable to notice that firefox no longer exists as "C:\Program Files\Mozilla Firefox\firefox.exe"

Anyone have any advice on how to fix this? Windows seems adamant not to let me set the http/https protocols to anything it doesn't think is a browser (i.e. my Firefox installation).

Đã được hỏi bởi coloradosjones 5 tháng trước

Trả lời lần cuối bởi coloradosjones 5 tháng trước

Unable to open email attachments

I use Firefox as the browser for my email. Recently I have been unable to open or download pdf attachments (or any attachment) to emails. When I click on the attachment … (xem thêm)

I use Firefox as the browser for my email. Recently I have been unable to open or download pdf attachments (or any attachment) to emails. When I click on the attachment I get the message javascript:void(0).

I contacted the email company who said there was no problem at their end and that the problem was with Firefox and pop up blockers. I followed the advice in the attachment to unblock for my email account - but this did not solve the problem.

So I then tried Edge for my emails and I can open attachments in Edge.

So the problem is with Firefox.

Any advice please? Thanks

Đã được hỏi bởi david_blake 3 tháng trước

Trả lời lần cuối bởi david_blake 3 tháng trước

I'd love to have Firefox release version and Firefox beta installed side-by-side on my Mac. Is it possible?

I'd love to have Firefox release version and Firefox beta installed side-by-side on my Mac. Is it possible? If not, how do I make it so without encountering weird problem… (xem thêm)

I'd love to have Firefox release version and Firefox beta installed side-by-side on my Mac. Is it possible? If not, how do I make it so without encountering weird problems? If any from Firefox's dev team are reading this, please just make this possible. Chrome and Edge do it. Firefox should, too, IMO. Thank you.

Đã được hỏi bởi Lalit Bar 1 tháng trước

Trả lời lần cuối bởi jonzn4SUSE 4 tuần trước

Possible corrupted/fake Firefox Browser installer

I think I may have downloaded and installed a fake/malicious application that looks/acts like a Firefox Browser installer. I noticed a lot of suspicious activity on my pe… (xem thêm)

I think I may have downloaded and installed a fake/malicious application that looks/acts like a Firefox Browser installer. I noticed a lot of suspicious activity on my personal/work computer that led me to suspect my internet router was compromised. I work from home sometimes and I may have been tricked into downloaded and installing a malicious version of Firefox.

I suspect this Firefox installer is different because this installer is capable of circumventing the safeguards placed on my work laptop. My work laptop is managed by a university and I require an administrator's credentials in order to install/uninstall any programs, change/view any environment settings, or even open up and view task manager. This process entails actually having an administrator remote into my laptop, take remote control, enter their credentials, and ensure the installer completes.

So far, this unusual Firefox installer is the only installer capable of bypassing these security hurdles. And it does not detect any existing versions of Firefox to prompt an uninstaller before re-installing. The installer's visuals/progress bar appears to be a scripted animation.

I still have the installer in question saved on my computer and I'm not sure what to do with it. I'd like to find out more about it but I'm not sure how to go about it.

Đã được hỏi bởi JungleEskimo 3 tuần trước

Trả lời lần cuối bởi JungleEskimo 1 tuần trước

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Unable to import saved firefox profile (from windows 7 32-bit, to windows 10 64-bit) - new profile has none of my data

My attempt at transferring profile from an existing machine to a new machine has not produced the intended result, and I need help. I saved my firefox profile (on a 32-bi… (xem thêm)

My attempt at transferring profile from an existing machine to a new machine has not produced the intended result, and I need help.

I saved my firefox profile (on a 32-bit windows 7 machine; firefox was fully up to date) without firefox running, in a ZIP file (the letter number combination followed by dot followed by default), then copied the ZIP file to the new machine (windows 10 64-bit), unzipped it (so I had the same file name as from the old machine), then copied this folder into position at

C:\users\user\appdata\roaming\mozilla\firefox\profiles

I then started firefox on the new machine, went to about:profiles, created new profile, selected the folder (which was present at this step), then completed the procedure and started a new firefox with the new profile (the option given in about:profiles).

The new instance of firefox has none of my data (several thousand bookmarks, passwords, etc.); instead looks like the other (default new) profile.

The existing profile file set was (after this procedure) visible in

C:\users\user\appdata\local\mozilla\firefox\profiles

The restored profile is running now as "Default User" and reflects the folder I transferred from the old machine (except that I changed the word "default" in that folder to "main", leaving the number-letter part and the dot unchanged.)

No errors were indicated from firefox (which is running version 83 now) during any steps of the old back-up/archive save step or the new restore/recover step.

What am I doing wrong? How can I recover my existing profile data? The procedure, while not very friendly, seems straightforward enough. I don't want to go into the details of recovering specific database files/folders; I'd just like the profile I had before functioning in the new machine.

Please help

Đã được hỏi bởi wb0gaz 1 năm trước

Đã được trả lời bởi wb0gaz 1 năm trước

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Having a dreadful time migrating my Firefox settings to new PC

My profile folder is C:\Users\hseib\AppData\Roaming\Mozilla\Firefox\Profiles\pftm4b0j.Default User. It is the only profile under "Profiles". When I open the file "pftm4b… (xem thêm)

My profile folder is C:\Users\hseib\AppData\Roaming\Mozilla\Firefox\Profiles\pftm4b0j.Default User. It is the only profile under "Profiles". When I open the file "pftm4b0j.Default User" it looks like all my data successfully migrated from my old PC. But when I launch Firefox, no bookmarks, no passwords, no add-ins, no nothing. Any help welcome.

Đã được hỏi bởi hseibel2 1 năm trước

Đã được trả lời bởi jscher2000 - Support Volunteer 1 năm trước

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Firefox Developer edition on ubuntu asking to reinstall the package on every update

I downloaded firefox developer edition from: https://www.mozilla.org/en-US/firefox/developer/ But almost every 5-6 days it shows a prompt saying firefox have an update, d… (xem thêm)

I downloaded firefox developer edition from: https://www.mozilla.org/en-US/firefox/developer/ But almost every 5-6 days it shows a prompt saying firefox have an update, download it from website we will help you install it. It's inefficient and time consuming to manually download and setup firefox after every update.

Đã được hỏi bởi yashrathicricket 1 năm trước

Đã được trả lời bởi cor-el 1 năm trước

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Complete uninstall and reinsrtall keeping all settings, bookmarks, addons, etc.

Using the latest 87.0 (64-bit) on a Windows 10 PC. I always keep multiple tabs open when browsing of my websites that I use everyday. Tabs constantly crash and have to be… (xem thêm)

Using the latest 87.0 (64-bit) on a Windows 10 PC.

I always keep multiple tabs open when browsing of my websites that I use everyday. Tabs constantly crash and have to be reloaded. When I switch to a different tab the other tabs crash. Ads and videos crash the tabs. Firefox session crashes all the time too.

I believe something is corrupted and would like to do a complete cleaning of Firefox and install fresh while being able keep all my settings, bookmarks, preferences, addons, plugins, themes, etc.

I need complete step by step instructions or video to help me.

Installed plugins: Adblock Plus - free ad blocker Ant Video downloader Chirr App Copy All Tab Urls Google Translator for Firefox New Tab Homepage PriceBlink Coupons and Price Comparison RoboForm Password Manager Save Image In Folder Tab Session Manager Take Webpage Screenshots Entirely - FireShot TinEye Reverse Image Search Video DownloadHelper WebP image converter

Đã được hỏi bởi rogue7474 1 năm trước

Trả lời lần cuối bởi jscher2000 - Support Volunteer 1 năm trước

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Firefox freezes trying to install Thunderbird

Brand new windows 10 laptop. Installed Firefox just fine. I downloaded the Thunderbird exe install file OK. When I try to execute it, Firefox freezes. Tried about 10 … (xem thêm)

Brand new windows 10 laptop. Installed Firefox just fine. I downloaded the Thunderbird exe install file OK. When I try to execute it, Firefox freezes. Tried about 10 times. i tried several different exe files. Any suggestions?

Đã được hỏi bởi jmlandt 10 tháng trước

Đã được trả lời bởi FredMcD 10 tháng trước

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Cannot Load or Install new User Profile

Howdy, fellow Firefox aficionados. I'm running FF on a Windows 10 Home 64-bit desktop. Some time ago, I suddenly could no longer open Firefox because it couldn't find my… (xem thêm)

Howdy, fellow Firefox aficionados.

I'm running FF on a Windows 10 Home 64-bit desktop. Some time ago, I suddenly could no longer open Firefox because it couldn't find my Profile. So, I attempted to create a new one, but it would not allow me to do so.

"Changes Not Saved"

   "An unexpected Error has prevented your changes from being saved."

[See uploaded Image]

More than likely, either I, or one of my system maintenance programs wiped some data or folder. I have deleted Firefox and reinstalled it with the latest version, but this dilemma persists.

Thanks for reading my post and if you reply, a big Thanks!

Đã được hỏi bởi Bud 8 tháng trước

Trả lời lần cuối bởi cor-el 7 tháng trước

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Firefox opens with blanks screen will not load tabs, options, about:config won't work.

This is going to be long sorry. A lot has transpired My son was using 78.15esr. I upgraded it to 91.3esr. After the upgrade the browser worked; tabs loaded, surfing was … (xem thêm)

This is going to be long sorry. A lot has transpired

My son was using 78.15esr. I upgraded it to 91.3esr. After the upgrade the browser worked; tabs loaded, surfing was fine, could go into settings and about:config was fine.

He went to watch something on Netflix. Netflix complained his browser was not supported and he needed to upgrade to the latest version - which at the time was 91.3esr.

In frustration he installed Chrome. When he tried to run it he was told software restrictions were in place. I had not set any restrictions, and I checked secpol.msc and there were definitely no path rules defined. If restrictions can be set in group policy I had not set them because I am unaware of them.

So he installed Microsoft Edge, which installed VC runtime for 2013 and 2015-2019 for both x64 and x86.

At that point Firefox no longer loads tabs at all. About:<anything> doesn't work. Settings doesn't work. You can't go to safe mode (more on that later), and when closing the browser two processes remain taking about 60 seconds to end.

I did have the group policy templates for Firefox installed. When I upgraded to FF 91 I installed the latest templates.

A couple of times when I started FF it complained about vcruntime140 was missing. But just running FF again worked without doing anything else.

So I reverted to 78.15; I uninstalled v91.3esr. I deleted his profiles.ini and profiles folder and then copied them back from a back up. I removed any registry settings, and copied back the v78 ADML files. I then installed v78.15esr with internet disconnected. Did not run FF after install. Went into group policy editor and turned off telemetry and auto updates then re-enabled internet

Run FF and same issue. tabs not loading. Pages not loading. I can click on a menu and I can type into navbar and search bar but there is no response. I checked internet was working.

I deleted the %LOCALAPPDATA% cache folders. I flushed the DNS cache. None of this worked.

So I uninstalled FF again, deleted the profile folders and ini. Disconnected from Internet. Deleted any registry settings, and removed the group policy templates. Then installed 78.15 from scratch and let it create a new profile.

Same darn problem. It seems to me that installing chrome and/or edge has done something nasty, but I have no idea what. I say that because before he did that he could surf the web, but Netflix just said his browser ver was outdated.

I tried contacting netflix on chat but they were worse than useless.

So I uninstalled again and removed everything. Connected the internet and installed FF again and let it update automatically. Same problem.

I've left him with edge but I need to fix FF.

I even uninstalled the VCLibs, Chrome and Edge. These did not fix the problem.

I tried safe mode but when firefox restarts there are two processes that take 60+ seconds to end so FF sits there saying "restarting...". When those processes finally end Firefox does not restart.

Checked for viruses; nothing found. Rebooted PC several times.

So at this point in time; FF will run but will not load the 3 tabs; Facebook, Netflix and youtube. They stay blank. Settings is not accessable, nor is addon's or logins and passwords. Typing anything on the search bar does nothing Typing anything in the address bar does noting Trying about:config or about:profile or any other about's does nothing. When closing FF two processes take 60+ seconds to end.

If I go back to him and tell him I need to reinstall Windows he will go absolutely nuts.

What also worries me is that Netflix said that the most recent esr browser version was not supported and that he should update to a later version.

And what is even more troubling is I updated his girlfriends PC at the same time and hers works perfectly. This scares the hell out of me because I then expect responses like "Your sons problem is not a firefox problem".

Đã được hỏi bởi citizen1138x 7 tháng trước

Đã được trả lời bởi FredMcD 7 tháng trước

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Keep getting "firefox can't update to the latest version" almost every day

I didn't used to receive this,but I keep getting the Keep getting "firefox can't update to the latest version" message on a pretty regular basis. I have downloaded and in… (xem thêm)

I didn't used to receive this,but I keep getting the Keep getting "firefox can't update to the latest version" message on a pretty regular basis. I have downloaded and installed the latest copy a few times, but then I still get this message.I haven't tried uninstalling the browser in control panel, but I thought I'd check this first. Current version: 82.0.2 This is happening on my work machine (Microsoft Surface) running Windows 10.

Thank you Mike

Đã được hỏi bởi indianamichael1 1 năm trước

Trả lời lần cuối bởi cor-el 1 năm trước