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Failed to Read the Configuration File. Please Contact Your System Administrator

Failed to read the configuration file. Please contact your system administrator.

Configuration: Windows 10 Firefox 57.0.one

Problem description: Upon launch of FF, message is displayed and FF fails to launch

Solution: Wiped out Firefox and installed from scratch. Resolved message/problem.

Problem returned: Had to finish Firefox process instead of closing properly. Message/problem returned.

Solution: Removed some files in FF installation directory (instead of stupid reinstall) and resolved.

Problem returned again!!!

I'll continue this cycle, but I cannot continue to use Firefox until this is resolved in one case and for all. I will non recommend Windows users install FF either.

Configuration: Windows 10 Firefox 57.0.1 Problem description: Upon launch of FF, message is displayed and FF fails to launch Solution: Wiped out Firefox and installed from scratch. Resolved bulletin/problem. Problem returned: Had to end Firefox process instead of closing properly. Message/problem returned. Solution: Removed some files in FF installation directory (instead of stupid reinstall) and resolved. Problem returned again!!! I'll continue this bike, but I cannot continue to use Firefox until this is resolved once and for all. I will non recommend Windows users install FF either.

Chosen solution

Are you lot in a managed environment where an IT department would be altering your Firefox configuration in a startup script? If not, it may bespeak a malware problem.

When Firefox starts upward, information technology checks for JavaScript files in the program folder nether (depending on 32-bit/64-bit)

  • C:\Program Files\Mozilla Firefox\defaults\pref
  • C:\Programme Files (x86)\Mozilla Firefox\defaults\pref

Ordinarily, this folder contains a file named aqueduct-prefs.js. Whatsoever other file — which may be named autoconfig.js, local-settings.js, or whatever.js — is read as an Autoconfig file.

A classic Autoconfig file directs Firefox to another JavaScript file, sometimes but not always named mozilla.cfg, that contains script code Firefox is meant to execute. This Autoconfig mechanism is most ofttimes used by companies to preconfigure or lock downwardly Firefox, but information technology has wide ranging applications and is potentially as powerful as a Legacy extension.

Please movement whatsoever/all nonstandard .js files from the \defaults\pref folder to a neutral location for investigation. Advisedly examine their contents (don't double-click, utilise right-click > Edit or Open up With) and runway down the associated script file(south) they invoke, and move those to your investigation folder. Can y'all assess the purpose and likely source of these files based on their contents, or would it be useful to share them for further analysis?

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All Replies (7)

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I' would you Please sameone help me , how get nigh Sign-up at moilla, and here is my Starbear20108 outlook

Modified by James

Chosen Solution

Are you in a managed surroundings where an It department would be altering your Firefox configuration in a startup script? If not, it may indicate a malware problem.

When Firefox starts up, it checks for JavaScript files in the program folder nether (depending on 32-bit/64-bit)

  • C:\Program Files\Mozilla Firefox\defaults\pref
  • C:\Program Files (x86)\Mozilla Firefox\defaults\pref

Commonly, this folder contains a file named channel-prefs.js. Whatsoever other file — which may be named autoconfig.js, local-settings.js, or whatever.js — is read every bit an Autoconfig file.

A classic Autoconfig file directs Firefox to another JavaScript file, sometimes but not always named mozilla.cfg, that contains script lawmaking Firefox is meant to execute. This Autoconfig mechanism is well-nigh often used by companies to preconfigure or lock down Firefox, but it has wide ranging applications and is potentially every bit powerful equally a Legacy extension.

Please move whatever/all nonstandard .js files from the \defaults\pref binder to a neutral location for investigation. Carefully examine their contents (don't double-click, use correct-click > Edit or Open With) and track down the associated script file(s) they invoke, and move those to your investigation binder. Can you assess the purpose and probable source of these files based on their contents, or would it be useful to share them for further analysis?

Are y'all in a managed environment where an IT department would be altering your Firefox configuration in a startup script? If not, information technology may indicate a malware problem. When Firefox starts up, it checks for JavaScript files in the plan binder nether (depending on 32-bit/64-bit) * C:\Plan Files\Mozilla Firefox\defaults\pref * C:\Program Files (x86)\Mozilla Firefox\defaults\pref Normally, this binder contains a file named aqueduct-prefs.js. Any other file — which may be named autoconfig.js, local-settings.js, or whatever.js — is read as an Autoconfig file. A classic Autoconfig file directs Firefox to ''another'' JavaScript file, sometimes but not always named mozilla.cfg, that contains script code Firefox is meant to execute. This Autoconfig mechanism is most often used by companies to preconfigure or lock downwardly Firefox, but information technology has broad ranging applications and is potentially every bit powerful every bit a Legacy extension. Please motility whatever/all nonstandard .js files from the \defaults\pref folder to a neutral location for investigation. Carefully examine their contents (don't double-click, utilise right-click > Edit or Open With) and track down the associated script file(south) they invoke, and motion those to your investigation folder. Can y'all appraise the purpose and probable source of these files based on their contents, or would it be useful to share them for farther analysis?

Hi bullockr1287, exercise y'all accept the identical error message every bit the original poster? If your problem is dissimilar, please submit a new question starting here:

https://support.mozilla.org/questions/new

Howdy bullockr1287, do you lot accept the identical fault bulletin as the original poster? If your problem is different, please submit a new question starting hither: https://support.mozilla.org/questions/new

Thanks for your assistance with the "default" directory. This was the same directory I worked with previously. This time I allow FF start in Safe manner and then disabled extensions and all was well.

It looks like there was an errant add-on. I installed 1Password extension and didn't realize information technology was a beta version. I'll go along tabs on the non-beta version and also study this to Agile.

Thanks for your assistance with the "default" directory. This was the same directory I worked with previously. This time I let FF start in Safety mode and then disabled extensions and all was well. It looks similar there was an errant add-on. I installed 1Password extension and didn't realize it was a beta version. I'll keep tabs on the non-beta version and too report this to Agile.

were is signup on firefox , and like to go into firefox,

were is signup on firefox , and like to get into firefox,

Hi aaron-neville, give thanks you for reporting dorsum. It'due south hard to understand why an extension would touch that folder. Yet, password manager add together-ons often need to communicate with an external program, and so perhaps it is somehow related to that?

Hi aaron-neville, thanks for reporting dorsum. It's difficult to understand why an extension would touch that folder. However, countersign manager add-ons often need to communicate with an external program, so possibly it is somehow related to that?

Hullo bullockr1287, Firefox is a free web browser you download from

https://world wide web.mozilla.org/firefox/

After y'all install it, you have the option to create a Firefox Account to have advantage of Sync and other services. All the same, you besides can just skip that and browse the spider web immediately.

Please start a new question for annihilation else.

Hi bullockr1287, Firefox is a gratis web browser you lot download from https://www.mozilla.org/firefox/ Later you lot install it, you have the choice to create a Firefox Account to take advantage of Sync and other services. Nevertheless, you also can just skip that and browse the web immediately. Please starting time a new question for anything else.

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Source: https://support.mozilla.org/en-US/questions/1193032

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