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failed to check for update

Recently Firefox always has the error "failed to check for update". I have tried restarting my pc and running as admin. I am on windows 10. I have been able to manually … (read more)

Recently Firefox always has the error "failed to check for update". I have tried restarting my pc and running as admin. I am on windows 10.

I have been able to manually install the latest version by installing it over the top of my current install, how can I fix the error to be sure that my browser will auto update?

Thanks

Asked by ETERNALVOID 7 months ago

Answered by James 7 months ago

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Corrupted PDF Downloads from Intranet sites after 125.0.1 Update

Prior to update 125.0.1 corporate intranet users could download PDF files from our Line of Business applications / Webpages. Today after the latest update the PDF files … (read more)

Prior to update 125.0.1 corporate intranet users could download PDF files from our Line of Business applications / Webpages. Today after the latest update the PDF files download but are corrupted. The site was added to the trusted webpage without improvement.

Adobe Acrobat Reader could not open ********.pdf because it is either not a supported file or because the file has been damaged

Asked by Jeff@work 7 months ago

Answered by NoahSUMO 7 months ago

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Every download fails, including extensions

Hi there, On the 23. of Mai I first noticed that I am unable to download any files whatsoever. I tried downloading .exe files and also a .csv file. When I try to downloa… (read more)

Hi there,

On the 23. of Mai I first noticed that I am unable to download any files whatsoever. I tried downloading .exe files and also a .csv file. When I try to download one of these files it appears in the downloads window but immediately goes to the status "Failed". Any retry fails as well.

The same thing goes for extensions. I cannot download any extensions or plugins using my Firefox browser. Since I reinstalled Firefox I can now also not use Plex because Firefox can't install the required plugins.

I will attach screenshots of all the errors I get.

All of the above worked when I tried it on the Edge browser.

Firefox version: 126.0 Windows 11

Things I have tried to fix the issue:

  • Use the network connection from my phone instead of my home network
  • Disable firewall and windows defender
  • Reinstall Firefox
  • Refresh Firefox
  • Downgrade to version 125.0.1 and 122.0
  • Reset router to factory settings
  • Flush dns
  • Restart PC
  • Manually delete profile folder
  • Delete temp files
  • Change download destination
  • Disable "Block dangerous and deceptive content"
  • Troubleshoot Mode

Is Firefox using some other temporary folder for downloads?

Any ideas on how to fix this issue would be appreciated.

Thank you.

Asked by hawkes.j 6 months ago

Answered by hawkes.j 6 months ago

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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 i… (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!

Asked by jbab52 10 months ago

Answered by Paul 10 months ago

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Firefox won't update

I keep getting notifications asking me to update firefox every couple of days. I download the update, it goes smoothly, the notification disappears, but it comes back in … (read more)

I keep getting notifications asking me to update firefox every couple of days. I download the update, it goes smoothly, the notification disappears, but it comes back in a day or two. I also have my setting to supposedly do updates automatically, but that doesn't seem to be working. Please help!

Asked by tabatarcaraz 7 months ago

Answered by cor-el 7 months ago

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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 dow… (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.

Asked by _dolphins 7 months ago

Answered by _dolphins 7 months ago

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Firefox is not checking for updates and will not auto-update

For the past week, my browser does not auto-update. I have to download the update and re-download the browser. I went into the settings and found the update section and … (read more)

For the past week, my browser does not auto-update. I have to download the update and re-download the browser.

I went into the settings and found the update section and when I clicked "Check for Updates", it kept saying "failed to check for updates". I tried with my proxy-settings on with VPN on, proxy-settings on with VPN off, proxy-settings off with VPN on, proxy-settings on, with VPN off.

This is in my personal laptop, where I am the only and admin profile.

My Firefox used to to auto-update but now it keeps saying I need to download the update, but my browser can't even tell if I have the most current version or not.

Asked by Charitea “profaniTea” Fox 7 months ago

Answered by James 7 months ago

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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.

Asked by Ethan 7 months ago

Answered by Ethan 7 months ago

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Extension appears to be corrupt

Hi, There many extensions such as: https://addons.mozilla.org/en-US/firefox/addon/search-on-imdb-context-menu/ that say when trying to install: Installation aborted be… (read more)

Hi,

There many extensions such as:

https://addons.mozilla.org/en-US/firefox/addon/search-on-imdb-context-menu/ that say when trying to install:

Installation aborted because the add-on appears to be corrupt.

I am using Firefox Developper Edition, with extensions.langpacks.signatures.required set to false.

This addon, after download, installs fine as a temporary addon.

How can I install it permanently?

Thanks.

Asked by Bob4K 7 months ago

Answered by TyDraniu 7 months ago

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message said Firefox could not update automatically, requested I install Firefox. I did. Next day, same thing, can't update, intall Firefox. And again today. I don't know what to do.

I have two desktop icons for Firefox. Each opens to a different file. How do I clear the old file? What do I do about the message that Firefox can not update automatical… (read more)

I have two desktop icons for Firefox. Each opens to a different file. How do I clear the old file? What do I do about the message that Firefox can not update automatically? Where do I look to see Firefox file and see what date it is downloaded? If it is operational? Why is the same series of problems repeating daily?

Asked by beth.woodworth1 7 months ago

Answered by beth.woodworth1 7 months ago

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Can I keep Firefox DevEd and Firefox isolated?

Hello Ladies and Gentlemen! Please read my post completely before answering! Thank you! I'm using Firefox DevEd (manually installed) as my primary driver and the … (read more)

Hello Ladies and Gentlemen!

Please read my post completely before answering! Thank you!

I'm using

  • Firefox DevEd (manually installed) as my primary driver and
  • the standard Firefox (installed from the package manager) for leisure/hobby related browsing

each with its own Mozilla account and profile, on Manjaro KDE. Sadly, either Firefox sees all the profiles. They have usually different versions. If I mistakenly start one of the Foxes in the other Fox's profile, the newer version of Firefox (usually Firefox DevEd) autostarts migrating that profile. Which it renders the profile "corrupted" for its intended Firefox.

I'd like to have Firefox DevEd unable to see profiles (or anything else) intended for the standard Firefox and vice versa. Or at least unable to botch profiles. I do not want to disable migration or use no. Given that Firefox configuration location is hard-coded, I'm not having high hopes for my wish.

I'm wondering if there is a way to keep two Firefox installations completely isolated, other than running them in containers.

Thank you for your time!

Asked by The G 8 months ago

Answered by zeroknight 8 months ago

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File not downloaded: Potential security risk - Allow download don't work

Hi! On the latest version Mozilla Firefox 125.0.1 when i download .docx files i get the message 'File not downloaded: Potential security risk.' I select Allow download an… (read more)

Hi! On the latest version Mozilla Firefox 125.0.1 when i download .docx files i get the message 'File not downloaded: Potential security risk.' I select Allow download and the file downloaded can't be opened.

Thanks!

Asked by Laurentiu Marin 7 months ago

Answered by Laurentiu Marin 7 months ago

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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 cli… (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

Asked by luckyhohk 7 months ago

Answered by zeroknight 7 months ago

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Incorrect file format

It has been observed that when a user uses the Firefox browser and tries to download a DDD file, the file format is .pdf instead of .ddd. In the devtools, it was observed… (read more)

It has been observed that when a user uses the Firefox browser and tries to download a DDD file, the file format is .pdf instead of .ddd. In the devtools, it was observed that the content-type is text/plain in the response to the request. I changed the content-type to application/octet-stream, but the error still persists

Asked by Borys Krasko 7 months ago

Answered by jscher2000 - Support Volunteer 7 months ago

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How to allow downloads of my photos from my phone

Not sure if this is a new 'feature' post-update but it's damn annoying. I was busily transferring some photos that I'd taken on my phone over to Firefox on my Mac. Wasn… (read more)

Not sure if this is a new 'feature' post-update but it's damn annoying. I was busily transferring some photos that I'd taken on my phone over to Firefox on my Mac. Wasn't until I went to find them on the Mac where they would normally be and couldn't find them. Bit of digging, opening up the Download 'history' on Firefox and saw "File not downloaded: possible security risk".

I can see that I can disable this 'feature' but it seems to be a global "allow". Is there any way I can tell Firefox to allow any downloads from my devices on my network yet warn for potentially insecure downloads from the web?

TIA

Asked by countryman 7 months ago

Answered by zeroknight 7 months ago

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How to stop FF from opening my downloaded documents in the browser

Hello, In the past, FF downloaded documents without opening them in the browser. This is two weeks now that whenever I download a document, FF is now opening the documen… (read more)

Hello,

In the past, FF downloaded documents without opening them in the browser. This is two weeks now that whenever I download a document, FF is now opening the document in the browser without asking me.

I welcome if someone could tell me what I can do to stop FF from opening the documents.

Thanks for any help you can offer me.

Asked by in_search_of 8 months ago

Answered by jscher2000 - Support Volunteer 7 months ago

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Why ESR Updates on macos ventura?

Macos Ventura: Greetings, When I started getting msgs saying my browser was no longer supported, I checked my version. Firefox says i have v115esr and that it is "up t… (read more)

Macos Ventura:

Greetings,

When I started getting msgs saying my browser was no longer supported, I checked my version. Firefox says i have v115esr and that it is "up to date" - i.e. no update available at this time. I assumed I was getting the brush off from those web sites.

Why did Firefox not bring me up to v124? I get a "download update" probably once a month. It's been giving me a new variation of 115esr all along.

I've now downloaded 124 from your site. What do I need to do so that I stay current in the future? Thanks John

Asked by jnehera 8 months ago

Answered by James 8 months ago

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Unable to auto-update firefox for few versions in a row (have to download installer every time)

I am not sure when exactly problem started but for few months I have problem with automatic update of firefox. It properly detects update and downloads it but when I clic… (read more)

I am not sure when exactly problem started but for few months I have problem with automatic update of firefox. It properly detects update and downloads it but when I click to restart browser and apply update (this should close browser and display update install bar) nothing happens - browser simply closes. When I launch it again and go into "about firefox" again I see spinning circle next to "installing update". Of course this update never installs. When I close it for 2nd time and go into "about firefox" it goes back to "update ready to install, click to restart" - and again, when I click it browser simply closes without restarting and installing update. I tried removing my profile, using safe mode, disabling antivirus. Issue seems to be related to firefox itself. I also tried removing mozilla maintenance service but it did not help. Does anyone have any idea what could be causing this? For now only way for me to update firefox is manually download full installer from website and then it installs latest version without any problems - until next month comes and I have to update it again.

Asked by Piterk 9 months ago

Answered by Piterk 8 months ago