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problem authentication proxy

at work we use a proxy network with authentication ONLY with the firefox browser i have proxy problems. I see the page access denied by the proxy server, the only solutio… (read more)

at work we use a proxy network with authentication ONLY with the firefox browser i have proxy problems. I see the page access denied by the proxy server, the only solution is to close and open the application.

Asked by marco26 3 months ago

Last reply by marco26 2 months ago

Using firefox in more than one location with roaming profile data

We are currently trialling Firefox in our business, we need to redirect the users profile to have users bookmarks move with them when they enter meeting rooms. Currently… (read more)

We are currently trialling Firefox in our business, we need to redirect the users profile to have users bookmarks move with them when they enter meeting rooms. Currently we are using Folder Redirection with offline file syncing enabled to accomplish this. This is causing users to receive the error telling them to close Firefox as it is already running when they open Firefox on a second PC at the same time. I understand why this is happening with the lock file being created in the users roaming profile data, I am looking to find a solution that will allow users to have their data roam with them and be able to open multiple sessions on different PCs simultaneously.

What methods are you using to provide this level of functionality to users in your business?

Asked by harrylentern 5 months ago

Last reply by FredMcD 5 months ago

  • Archived

Adding policy based custom configurations on a Extension

We are trying to install an Extension which captures performance metrics of end users of our Org , we need to push this extension to all the users in our Org via Policy b… (read more)

We are trying to install an Extension which captures performance metrics of end users of our Org , we need to push this extension to all the users in our Org via Policy based so that there is no user interaction for installing this plugin, however we are unable to find how to add details explicitly to the extension the details include the Host, port and version where the plugin will be sending the data , need help to find the appropriate details

Asked by akshay.allihor 8 months ago

Last reply by Mike Kaply 7 months ago

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Couldn't load XPCOM error in non-persistent VDI

We use Firefox fairly extensively in our VDI environment and has become our organization's standard web browser. In a non-persistent VDI environment, on occasion we have … (read more)

We use Firefox fairly extensively in our VDI environment and has become our organization's standard web browser. In a non-persistent VDI environment, on occasion we have users that experience the dreaded "Couldn't load XPCOM" popup error message. In my research this usually is attributed to a faulty/corrupt update. We are a VMware View shop using instant clones with what's called a "Writable Volume" which is, in essence, a file system filter that allows certain user data to be written to persistent storage and the rest is written to the non-persistent VM. Upon logout the persistent disk is detached and the non-persistent VM is removed/rebuilt.

We are using the ESR branch of Firefox with policies configured to disable automatic updating, so I'm not sure where Firefox is breaking. Is there anything I can do to assist? On top of this, it's more difficult to reproduce since I'm unable to causing it to error out myself.

Asked by mchadwickIT 9 months ago

Last reply by FredMcD 9 months ago

  • Archived

google.com is not available when it is available on other browsers using same proxy.

Hello, I'm using version 60.7.2esr in an enterprise context behind a proxy. And I have the following issue : after some time using firefox, https://www.google.com becomes… (read more)

Hello,

I'm using version 60.7.2esr in an enterprise context behind a proxy.

And I have the following issue : after some time using firefox, https://www.google.com becomes unreachable.

But this website is available from edge or chrome. All these other browsers are using the same enterprise proxy with the same configuration.

I checked the network tab : there is no even a header sent apparently, hinting there is an issue before even getting to send a header.

Hence I imagined it could be a firefox DNS cache issue.

I deactivated it by modifying the user.js as I cannot modify it in about:preferences user_pref("network.dns.disablePrefetch","true") user_pref("network.dnsCacheExpiration",0)

But that didn't change the issue.

Do you have any suggestion on how to find what is going on? or a possible culprit?

Asked by Pedro Cristian 10 months ago

Last reply by FredMcD 10 months ago

  • Archived

Since Firefox 67.0.1, Google and some other websites can't be access if a proxy is performing HTTPS decryption

Firefox is showing this error : SEC_ERROR_REUSED_ISSUER_AND_SERIAL The proxy is performing https decryption based on a crafted rootCA that is distributed through GPO (Win… (read more)

Firefox is showing this error : SEC_ERROR_REUSED_ISSUER_AND_SERIAL

The proxy is performing https decryption based on a crafted rootCA that is distributed through GPO (Windows AD environment.) and firerefox configured to trust enterprise roots CAs (security.enterprise_roots.enabled;true) All worked fine before Firefox 67.0.1 Now, some websites are still working but some are not, including Google and Mozilla's sites. Chrome is working fine with both of those websites. Proxy used is Trendicro Interscan Web security virtual appliance 6.5 sp2 fully patched.

Asked by jerinho 11 months ago

Last reply by jerinho 11 months ago

  • Solved
  • Archived

Firefox 60.6.1ESR crashes on non-persistent VDI machines

On our non-persistent VDI environment we experiencing users where FireFox crashes frequently - We're running W7 Enterprise 32bits - Firefox version 60.6.1ESR 32 bits i wa… (read more)

On our non-persistent VDI environment we experiencing users where FireFox crashes frequently - We're running W7 Enterprise 32bits - Firefox version 60.6.1ESR 32 bits

i was expecting Sophos to causing this issue, so i created a new VDI machine without Sophos installed. The same issue appered.

I can reproduce the issue when launching a radio station on http://www.onlineluisteren.nl/ Issue appears between the 5 minutes and 2 hours

Worknotes: - Launched firefox in safe mode - Turned off hardware acceleration - created a new VDI image without our anti-virus 'Sophos' - issue was also happening with Firefox 60.5.2ESR

Log reports: https://crash-stats.mozilla.com/report/index/8b0db8fe-fba8-4cfb-b621-c87740190507 - Without Sophos installed on the machine and running in safe mode - this is on a test machine

https://crash-stats.mozilla.com/report/index/94037459-040a-404a-a7f0-3aca70190507 - Without Sophos installed - this is on a test machine

https://crash-stats.mozilla.com/report/index/62aa7ab3-0adb-47b7-ab20-26de60190507 - Without Sophos installed - this is on a test machine

https://crash-stats.mozilla.com/report/index/c5770d27-a023-43da-aa2b-06f3a0190501 https://crash-stats.mozilla.com/report/index/30dae469-7400-49d8-b020-748760190501 https://crash-stats.mozilla.com/report/index/8ab54247-3add-431e-8176-6f4ef0190501#tab-metadata https://crash-stats.mozilla.com/report/index/04819f59-8ff6-4d9e-82f8-ea8910190501#tab-metadata - With Sophos installed - PROD machine

Asked by UserUnknown 1 year ago

Answered by UserUnknown 1 year ago

  • Archived

Обновление не удалось, пожалуйста загрузите последнюю версию

Every day I download the latest version! Install it ! And in the next day the Firefox tell me that I must to download the new version ! Why my Firefox does not update au… (read more)

Every day I download the latest version! Install it ! And in the next day the Firefox tell me that I must to download the new version ! Why my Firefox does not update automatically ????

Asked by dewon 1 year ago

Last reply by cor-el 1 year ago

  • Archived

Problem with Firefox and Thunderbird automatic update

Hello, in company we have around 100 PC. All are in domain and have Firefox and Thunderbird. On both Firefox and Thunderbird is selected Automatic update All this PC was … (read more)

Hello, in company we have around 100 PC. All are in domain and have Firefox and Thunderbird. On both Firefox and Thunderbird is selected Automatic update All this PC was shutdown every day and have one user with power user profile. I see that around 1/3 of this PC automatic update simple not work. And sometimes stay few version back. What can block this update? What I can do to have work also in this PC-s automatic update?

Asked by kigor 1 year ago

Last reply by FredMcD 1 year ago

  • Archived

firefox crashes during startup

Windows 7 32-bit Enterprise running in a VMware workstation pro VM. Firefox has been working fine until I told it to go ahead and update last week. Since the update firef… (read more)

Windows 7 32-bit Enterprise running in a VMware workstation pro VM. Firefox has been working fine until I told it to go ahead and update last week. Since the update firefox fails to start. I see the window border form and then disappear. No crash logs in Firefox crash dir. Uninstalled and re-installed (specifically chose 32-bit installer) and told it to reset everything (clean install). Still have problem. I do find this in event log. Images are also attached. The .dll mentioned has a different name every time and all virus/malware scans show clean both for the firefox installer and the system.


Faulting application name: firefox.exe, version: 65.0.0.6963, time stamp: 0x5c4a1021 Faulting module name: b_zhdcanxx.dll, version: 0.0.0.0, time stamp: 0x5c267ec8 Exception code: 0x406d1388 Fault offset: 0x0000845d Faulting process id: 0x1db8 Faulting application start time: 0x01d4c2469dd7dd4c Faulting application path: C:\Program Files\Mozilla Firefox\firefox.exe Faulting module path: C:\Windows\system32\b_zhdcanxx.dll Report Id: dd7d2077-2e39-11e9-a0a6-54c20d3b1e0f

- System

 - Provider 
  [ Name]  Application Error 

 - EventID 1000 
  [ Qualifiers]  0 

  Level 2 

  Task 100 

  Keywords 0x80000000000000 

 - TimeCreated 
  [ SystemTime]  2019-02-11T20:16:08.000000000Z 

  EventRecordID 120052 

  Channel Application 


  Security 

- EventData

  firefox.exe 
  65.0.0.6963 
  5c4a1021 
  b_zhdcanxx.dll 
  0.0.0.0 
  5c267ec8 
  406d1388 
  0000845d 
  1db8 
  01d4c2469dd7dd4c 
  C:\Program Files\Mozilla Firefox\firefox.exe 
  C:\Windows\system32\b_zhdcanxx.dll 
  dd7d2077-2e39-11e9-a0a6-54c20d3b1e0f

Asked by demianph 1 year ago

Last reply by demianph 1 year ago

  • Archived

Uninstall all versions of firefox silently

I am unable to find a way to silently uninstall multiple different versions of firefox in an enterprise environment. We currently have 14 different versions spread out a… (read more)

I am unable to find a way to silently uninstall multiple different versions of firefox in an enterprise environment. We currently have 14 different versions spread out across multiple systems and windows OS's and need a command line that will remove them from workstations.

The <Firefox Full Installer.exe> /S option doesn't work very well, as it only uninstalls the .exe's version, and if that version isn't found, installs it instead!

Any help would be appreciated. I'm following this doc and its not helping at all: https://wiki.mozilla.org/Installer:Command_Line_Arguments

Asked by Rafius 1 year ago

Last reply by user633449 1 year ago

  • Archived

Firefox replaced data on uploaded files with user information

I used firefox to upload a 7z file into a website. Some time later I was reported the 7z file was returning CRC errors when decompressing. After downloading it from the w… (read more)

I used firefox to upload a 7z file into a website. Some time later I was reported the 7z file was returning CRC errors when decompressing. After downloading it from the website and comparing it against the original 7z (raw byte comparison) file I discovered a large section of the file, near the bottom, was replaced.

However the worst part is not that the file was corrupted but that the data inserted on the file contains user information. On thie section I found several strings matching all sorts of things:

  • URLs I have recently visited
  • Search bar history (searches I have recently done on google)
  • Login details saved on my firefox
  • part of pages I have recently visited

Is this a known issue? This is a big deal for me and I will stop using firefox until this is fixed.

I am using 60.0.1 (64-bit) over win8.1.

Asked by osmoon 1 year ago

Last reply by jscher2000 1 year ago

  • Archived

Firefox going into crash-and-respawn loops after proxy installation

After installation of a web proxy/security agent - Cyren Web Security - at our organization, users are getting a misbehaviour of firefox. Upon opening, the message "Safe… (read more)

After installation of a web proxy/security agent - Cyren Web Security - at our organization, users are getting a misbehaviour of firefox.

Upon opening, the message "Safe Mode is a special mode of Firefox ..." appears and the buttons "Start in Safe Mode" and "Refresh Firefox" appears.

Choosing any of the above options results in the following: Firefox opens. Disappears momentarily after a few seconds. Re-opens, saying all the tabs have crashed. Disappears again momentarily after a few seconds. Re-opens, saying all the tabs have crashed. Goes on in a loop

Trying to kill the process from Task Manager. Firefox appears again, new process respawns and goes in the loop above. Operation (Task kill) must either be repeated a number of times (approx 10) or workstation restart so that firefox goes off.


We have sadly had to resort to Google Chrome in the meantime the issue is under investigation. Affected versions vary from 52 to 60.01 (latest)

I have tried to deploy Firefox ESR 52.8.0 to resolve the matter. This resolved the matter for some users. For others, issue persists on Firefox ESR as well.

PLease help.

Asked by N1T15H 1 year ago

Last reply by FredMcD 1 year ago