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

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Mobby101
Mobby101
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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.

Krejt Përgjigjet (1)

cor-el
cor-el
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  • Top 10 Contributor
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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