Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

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 ».

En savoir plus
Résolu

Unable to make Firefox default browser.

Firefox Paramètres
dessertdish replied il y a 1 semaine
ggil9405
ggil9405

About two months ago, after various Windows and Firefox updates, I can no longer make Firefox the default browser. In Windows Default Apps the only option for FF is to make it the default program for Adobe Acrobat Document. Choosing Make FF Default through the browser does not work either. Additionally, I’ tried numerous suggestions, using AI help offered by both FF and Chrome, without success.

The OS is not allowing me to make Firefox the default browser. Is there any way around this?

Any suggestions?

Firefox: 155.0.1 (64-bit) Windows 11 Pro Version: 25H2 OS build: 26200.9278

Thanks

About two months ago, after various Windows and Firefox updates, I can no longer make Firefox the default browser. In Windows Default Apps the only option for FF is to make it the default program for Adobe Acrobat Document. Choosing Make FF Default through the browser does not work either. Additionally, I’ tried numerous suggestions, using AI help offered by both FF and Chrome, without success. The OS is not allowing me to make Firefox the default browser. Is there any way around this? Any suggestions? Firefox: 155.0.1 (64-bit) Windows 11 Pro Version: 25H2 OS build: 26200.9278 Thanks

Toutes les réponses (2)

amoun
amoun
  • Les 10 premiers contributeurs

Well first off this is a question for a Windows forum not being a browser issue. In Windows Default Apps the only option for FF is to make it the default program

It's not an option for Firefox. i.e. what you describe is an option for Acrobat.

The options you want are for html files etc.

Once you have one set then click on a Firefox row to see others.

In the second image I show a few

Website use files with endings, even if you don't see them in the URL

index.php | index.htm etc

so if you make a text file on your desktop, name or rename it [test.htm] or [test.html] etc. then right click and choose : open with and then choose Firefox > always you may have a way to work on the issue

dessertdish
dessertdish

Solution choisie

Hello,

First, you can try going back to Windows settings (Win + I), click on apps > default apps > then in the search box under set defaults for applications, set Firefox as default.

If this doesnt work, make sure that HTTP, HTTPS, .htm,.html, .pdf to Firefox.

If that also doesnt work, you can try to force it via command line : First, run command prompt (Win + R) then type cmd and press enter; then paste "C:\Program Files\Mozilla Firefox\firefox.exe" -silent -setDefaultBrowser" Keep in mind that the installation directory of Firefox.exe MAY be different!!!!!!

Poser une question

Vous devez vous identifier avec votre compte pour répondre aux messages. Veuillez poser une nouvelle question, si vous n’avez pas encore de compte.