Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Error Message appears since last week. Unable to read configuration file

  • 1 freagra
  • 0 leis an bhfadhb seo
  • 13 views
  • Freagra is déanaí ó cor-el

Mobby101
Mobby101
more options

Can i uninstall the current version and go back a few years - use a working version without bugs.

Can i uninstall the current version and go back a few years - use a working version without bugs.

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

This is caused by using an autoconfig.cfg file in the Firefox installation folder to deploy/customize Firefox that is no longer compatible.

Did you create this file yourself ?

You can check the Browser Console for more detail.

Note that in Firefox 117 this can possibly be caused by having a Cu.import rule to import Services.jsm, but since you are on Windows 7 and thus use 115 ESR this wouldn't be the case.

  • /questions/1419936 Firefox Developer edition error message "Failed tor read configuration file " on startup