Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

Learn More

Can not open "about.config" in either "normal" or "safe mode" in Firefox.

  • 5 réponses
  • 32 ont ce problème
  • 19 vues
  • Dernière réponse par ideato

more options

I am trying to modify the Preferences in the About.config settings, but I can not get into "about.config" in either normal Firefox mode or in Safe Mode Firefox.

I am trying to modify the Preferences in the About.config settings, but I can not get into "about.config" in either normal Firefox mode or in Safe Mode Firefox.

Solution choisie

For some weird reason, the "about:config" is now working. I tried closing and reopening Firefox numerous times, but About:config refused to work. Now after posting my problem with Mozilla Support, I went back into Firefox and was able to open About:config. Sorry about that.

Lire cette réponse dans son contexte 👍 12

Toutes les réponses (5)

more options

hello Keepper, it's about:config!

more options

Hi Keepper

about:config, with :

not with .

About:config


thank you

more options

I am typing ABOUT:CONFIG in that exact way. Is that not correct or should it be ABOUT CONFIG ? In the search (Location Bar) and I keep getting the message "there is no such website."

more options

Solution choisie

For some weird reason, the "about:config" is now working. I tried closing and reopening Firefox numerous times, but About:config refused to work. Now after posting my problem with Mozilla Support, I went back into Firefox and was able to open About:config. Sorry about that.

more options

check it in Safe Mode, select "Start in Safe Mode" and see if this happen again, if not see: Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems


thanks again