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Firefox update error: Failed to check for updates.

Hello, When I go to update Firefox through the settings > general > firefox updates > check for updates, I am getting the error in the title. I can manually down… (read more)

Hello,

When I go to update Firefox through the settings > general > firefox updates > check for updates, I am getting the error in the title. I can manually download the app installer and update to the most current version which is what I did for version 125.0.1, yesterday.

I have tried uninstalling and reinstalling firefox, installing the beta branch, refreshing firefox, running in troubleshooting mode, completely deleting all user firefox files, and I still get the error. No DNS resolver issues to the update server. No firewall issues. No network blocking (tested with other devices).

This issue started after March update to 124.0.1 and continues to current stable release 125.0.1.

This issue also seems to extend to checking for extension updates.

Below are browser logs for when i try to check for update or update extensions.

App Update Logs: AUS:AUM AppUpdater:check - currentState=STATE_IDLE AUS:AUM AppUpdater:check - starting update check AUS:SVC CheckerService:checkForUpdates - checkType: 2 AUS:SVC CheckerService:checkForUpdates - Making new check request for check id 86. AUS:SVC CheckerService:getUpdateURL - checkType: 2 AUS:SVC CheckerService:getUpdateURL - update URL: https://aus5.mozilla.org/update/6/Firefox/125.0.1/20240416043247/WINNT_x86_64-msvc-x64/en-US/release/Windows_NT%252010.0.0.0.22631.3447%2520(x64)/ISET%3ASSE4_2%2CMEM%3A32702/default/default/update.xml?force=1 AUS:SVC CheckerService:#updateCheck - sending request to: https://aus5.mozilla.org/update/6/Firefox/125.0.1/20240416043247/WINNT_x86_64-msvc-x64/en-US/release/Windows_NT%252010.0.0.0.22631.3447%2520(x64)/ISET%3ASSE4_2%2CMEM%3A32702/default/default/update.xml?force=1 AUS:SVC CheckerService:#updateCheck - request got 'error' event AUS:SVC CheckerService:#updateCheck - Failed. request.status: 2152398919 AUS:SVC getStatusTextFromCode - transfer error: Data transfer was interrupted (please try again), code: 2152398919 AUS:AUM AppUpdater:check - Update check failed; CHECKING_FAILED

Extension Update Logs: 1713382616474 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616475 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616476 addons.update-checker WARN HTTP Request failed for an unknown reason 3 1713382616477 addons.update-checker WARN HTTP Request failed for an unknown reason 2 1713382616478 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616481 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616483 addons.update-checker WARN HTTP Request failed for an unknown reason 2 1713382616484 addons.productaddons WARN Failed downloading XML, status: 0, channelStatus: 2152398919, errorCode: 2, reason: error 1713382616486 addons.update-checker WARN HTTP Request failed for an unknown reason 2 1713382616487 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616489 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616489 addons.productaddons WARN Failed downloading XML, status: 0, channelStatus: 2152398919, errorCode: 2, reason: error 1713382616493 addons.update-checker WARN HTTP Request failed for an unknown reason 2 1713382616494 addons.update-checker WARN HTTP Request failed for an unknown reason 2 1713382616495 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616497 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616502 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616503 addons.update-checker WARN HTTP Request failed for an unknown reason 2 1713382616504 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616507 addons.update-checker WARN HTTP Request failed for an unknown reason 2 1713382616512 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382616514 addons.update-checker WARN HTTP Request failed for an unknown reason 1713382617489 addons.update-checker WARN HTTP Request failed for an unknown reason HTTPS-Only Mode: Not upgrading insecure request “http://r3.o.lencr.org/” because it is exempt.

Solved Locked Archived 2 364

Failed to check for updates

I am running version 125.0.3 (64-bit) on Windows 11, and I can't check for updates and have to manually download each new version after given a popup telling me that the … (read more)

I am running version 125.0.3 (64-bit) on Windows 11, and I can't check for updates and have to manually download each new version after given a popup telling me that the latest Firefox update couldn't be installed. I've tried restarting the computer, tried running the Mozilla Maintenance Service, and installing the latest updates for Firefox and Windows 11. Nothing I've tried has worked, and no other help article has helped me thus far.

Solved Archived 2 272

Updating to 127 unable to restore current session windows

I upgraded from 126.0.1 to 127 today. Upon update, all my windows are gone. The only way I could access them is to revert to an older profile backup and reinstall 126.0.1… (read more)

I upgraded from 126.0.1 to 127 today. Upon update, all my windows are gone. The only way I could access them is to revert to an older profile backup and reinstall 126.0.1.

I tried exporting my session with Tab Session Manager in 126.0.1 and reopen them in 127, but that only restores the last tab of each window (oddly). The json clearly lists 3 windows each with multiple tabs. I tried copying the sessionstore-backups folder, but no dice.

Symptoms similar to : https://support.mozilla.org/en-US/questions/1446921

Solved Archived 1 185

CAN NOT find the file path location of Firefox.exe application.

Hello, James here. I CAN NOT find the Firefox application file location. There is no option to show file path upon right click of the desktop icon and I can not locate it… (read more)

Hello,

James here. I CAN NOT find the Firefox application file location. There is no option to show file path upon right click of the desktop icon and I can not locate it in File Explorer. I have done an entire (C:) drive search and turned up nothing. C:\Users\(username)\AppData\Local\Mozilla Firefox does not exist in my file system. I am at a loss here and it's driving me bonkers!

Solved Archived 6 2740

32-bit vs 64-bit on Windows 11 22H2?

Hi there. This is my first post so bare with me.  :-) We are deploying the 32-bit version of the Firefox Browser to 4 700 clients and the 64-bit version to only 8 client… (read more)

Hi there.

This is my first post so bare with me.  :-)

We are deploying the 32-bit version of the Firefox Browser to 4 700 clients and the 64-bit version to only 8 clients; all clients on a 64-bit Windows 10 environment. We will migrate to Windows 11 22H2 this year. The manager for the 8 clients says he wants the 64-bits version just because it's...64-bits. No other reason.

I've read that the 64-bit version can not handle Java, Media Players like VLC and mayby some other plugins. Is that still so?

What is the main reason TODAY for using 64-bit Firefox Browser instead of 32-bit, except for the use of 4 GB+ RAM?

Regards. Anders, Göteborgs Stad, Sweden

Solved Locked Archived 1 326

Installation issue on Win 10

I have downloaded and installed Mozilla Firefox on a new computer through the Edge browser both from the Mozilla site and through the Microsoft store. The installation do… (read more)

I have downloaded and installed Mozilla Firefox on a new computer through the Edge browser both from the Mozilla site and through the Microsoft store. The installation downloads and installs as it should. Firefox has been selected as the default browser and everything appears as it should. When I open Firefox and type in an address, nothing populates. No site will open on the screen. When I open settings in Firefox, nothing opens. When I open history, it shows that I have been to the sites that I have loaded even though they haven't shown on the browser. I have completely uninstalled Firefox and reinstalled it with the same result. I have downloaded Opera browser and it installs correctly, I have downloaded and installed Firefox from Opera and had the same result. Any ideas?

Thanks, John

Solved Archived 3 268

Download failed. Please check your connection.

Hi, I keep getting this error when I try to download any extension. I also get an automatic download fail as soon as I try to download anything. I have tried several solu… (read more)

Hi, I keep getting this error when I try to download any extension. I also get an automatic download fail as soon as I try to download anything. I have tried several solutions such as changing privileges to reinstalling firefox entirely. I have checked other browsers on my computer and it is just firefox.

Solved Archived 1 228

Firefox install on external drive

Is it possible to install Firefox (or at least the profiles) onto an external SSD (i.e., not the C: drive)? If so, how? Note: this is not about migration/backup/recovery … (read more)

Is it possible to install Firefox (or at least the profiles) onto an external SSD (i.e., not the C: drive)? If so, how?

Note: this is not about migration/backup/recovery of profiles. Nor is it about where files are downloaded by default.

Windows 11 is consuming nearly all of the C: drive. I badly need to get Firefox (and later Thunderbird) onto my E: drive. I further note that the installer gives no options whatsoever as to the destination drive.

Most of the help I've found on the web is clearly outdated.

Thanks. jt

Solved Archived 7 752

firefox setup 127.0.2.exe offline installer fails with message about "extraction failed" and popup "file is corrupt"

firefox setup 127.0.2.exe offline installer fails with message about "extraction failed" and popup "file is corrupt". Windows explorer shows file properties and a signatu… (read more)

firefox setup 127.0.2.exe offline installer fails with message about "extraction failed" and popup "file is corrupt".

Windows explorer shows file properties and a signature for mozilla.

Is there a way to manually unpack the .exe? Someplace that issues are logged with more data (which file is corrupt?) There is a progress bar that flashes by part way, then a popup window with the file corrupt message.

(Trying to update to hopefully get rid of some crashes.)

Is there a hash for that .exe I could check?

Solved Archived 5 500

Widevine CDM Not Installing

I have been trying to solve this for a few days now. I tried to watch Netflix when it said, "Firefox is installing components needed to play the audio or video on this pa… (read more)

I have been trying to solve this for a few days now. I tried to watch Netflix when it said, "Firefox is installing components needed to play the audio or video on this page. Please try again later."

I found out this was due to Widevine not being installed AT ALL on my browser for some reason. The plugins manager has been saying that it will "be installed shortly" for a week now. I already tried toggling DRM off and on multiple times. I already tried using troubleshooting mode. I already checked GMP preferences to make sure nothing relating to Widevine was set to 'false'. I already tried turning off my antivirus long enough to try everything again and still nothing has changed. I do not have any VPNs running either. I am attaching a screenshot of what the browser console shows when I toggle DRM off and on again and try to run Netflix. I am also attaching what the gmp toggles say. Please help me figure out what is wrong!

Solved Archived 1 417

FireFox Download Excel File in D365 System But Change to HTML File

Dear all, We develop a system on D365 platform. On Chrome enviroment, I click the export option, it will download the excel file, I can open it on Excel. However, I clic… (read more)

Dear all,

We develop a system on D365 platform. On Chrome enviroment, I click the export option, it will download the excel file, I can open it on Excel. However, I click the export option on FireFox, it will download the excel file but I can't open it on Excel. When I use the notepad to open the file to see the content, I found the file become HTML content. I can see the file on web broswer. I don't know why the file content will be change HTML content when I use the Firefox to download it.

Please help....

Andrew

Solved Archived 2 183

downloads failing

Trying to download nord vpn and is says "failed" tried to download a receipt for the purchase of above and it says "failed" the browser on Win 10 is set to save files to … (read more)

Trying to download nord vpn and is says "failed" tried to download a receipt for the purchase of above and it says "failed" the browser on Win 10 is set to save files to downloads

Solved Archived 1 226

Downloading and saving Firefox.

Can I download Firefox and save it to a flash-drive instead of installing it? The computer I need it on has a new install of Windows 7 with IE and it will not browse. … (read more)

Can I download Firefox and save it to a flash-drive instead of installing it? The computer I need it on has a new install of Windows 7 with IE and it will not browse.

Solved Archived 3 390

Firefox automatically download files .docx from facebook page as pdf

Hello, I have problem with firefox. When I try download from facebook page files .docx, .xlsx (Microsoft Office) Firefox automatically download it as PDF and file is brok… (read more)

Hello, I have problem with firefox. When I try download from facebook page files .docx, .xlsx (Microsoft Office) Firefox automatically download it as PDF and file is broken. I don't know how to repair this. Please help, it is very frustrating.

Solved Archived 14 495

Failed installations of latest update to Firefox (127.0.1)

Automatic update on my Windows 10 desktop of the the new update 127.0.1 resulted in a version of Firefox that worked more or less for some web sites but was unable to rea… (read more)

Automatic update on my Windows 10 desktop of the the new update 127.0.1 resulted in a version of Firefox that worked more or less for some web sites but was unable to reach others.'

Solved Archived 1 102

Cannot get Thunderbird to connect to outlook.com e-mail accounts

I've been reading for two days now but still no solution. Background, have been wanting to try a linux desktop for some time. WinXP going away provided the opportunity. R… (read more)

I've been reading for two days now but still no solution. Background, have been wanting to try a linux desktop for some time. WinXP going away provided the opportunity. Recently installed Mint 16 Cinnamon on an IBM Thinkpad x41 laptop (overwriting WinXP) with no problems. System connected to the internet fine via Firefox. Also Mint performed all updates as expected.

Next moved on to configuring e-mail using Thunderbird. Entered account info and TB found servers and settings (below) for that particular e-mail address (which I have verified on many sites as being the correct settings):

Incoming IMAP Server:imap-mail.outlook.com Port: 993 SSL: SSL/TLS Authentication: Normal Password

Outgoing: smtp Server:smtp-mail.outlook.com Port: 587 SSL: STARTSSL Authentication: Normal Password

However, when TB attempts to authenticate the account I get "Configuration could not be verified - is the username and password correct?"

I have logged into the account via MS Outlook as well as via the outlook.com web app and verified the user ID and password are correct. I have telnet'd to the individual imap and smtp servers and established a connection so I know I can see the servers via the listed ports.

Thinking it might be a Linux Mint issue - I downloaded TB on a windows7 machine. Same issue. I then tried creating a TB account using my g-mail address figuring I'd try some other servers. All worked fine, found the servers, authenticated and downloaded my mail. I was also able to send messages from this account. Back to the Linux Machine, I did the same thing with the g-mail account and had similar success.

So I think I have isolated it to TB authentication issues with outlook.com but I have no idea how to fix it.

Would greatly appreciate any help you can offer. Being a good Linux N00B, I've read until my eyeballs are ready to fall out but haven't found the solution.


Thank you TC

Solved Archived 2 105

Cannot find "Thunderbird.exe-p"

I have installed and am running Thunderbird on my new laptop, and would like to use the profile from my old computer. I have followed the instructions provided, and copi… (read more)

I have installed and am running Thunderbird on my new laptop, and would like to use the profile from my old computer. I have followed the instructions provided, and copied the profile (renamed) into the folder on the new laptop. When I run "thunderbird.exe-p" I receive a message "cannot find Thunderbird.exe-p" and asked to try again, but without success. I would be grateful for help on this problem. With thanks Alan

Solved Archived 9 294

install a gmail acoount

I, and with many others, have the following problem: If I want to create a gmail account in Thunderbird via IMAP, I will arrive at the following screen: see word doc. W… (read more)

I, and with many others, have the following problem: If I want to create a gmail account in Thunderbird via IMAP, I will arrive at the following screen:

see word doc. 

Whatever I click or do not react in test. We have tried several gmail acoount. All account work via login on the site. Everything that is mentioned on the internet does not work. The security through the site has also been reduced. All virus scanners are disabled, Java updated or reinstalled. And again: many more people have this problem, but no one has received a solution. What else can we (I) do?

Solved Archived 5 46

Cannot locate Thunderbird profile folder on Windows 11

I'm trying to move Thunderbird to a new PC. Both PC's are running Windows 11. I've followed the instructions for locating my profile. According to "Troubleshooting Inf… (read more)

I'm trying to move Thunderbird to a new PC. Both PC's are running Windows 11. I've followed the instructions for locating my profile. According to "Troubleshooting Information" my profile is supposed to be located at "C:\Users\photo\AppData\Roaming\Thunderbird\Profiles\k6i7koof.default-release\Mail\Local Folders". When I click on the "Open Folder" button, I receive an error message that the folder does not exist. When I try navigating to the folder manually, I can not find a "Thunderbird" folder under "AppData\Roaming". I've selected "Show Hidden Files/Folders" under Windows Explorer. I know my profile exists because I can access a set of Local Folders when I'm in Thunderbird. I'd really like to move those folders over to my new PC. Any help to find the profile folder will be much appreciated.

Solved Archived 6 1809