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

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

running firefox 4.0.1 & have window popup that says JavaScript Appl. uninstal set. Can this be fixed?

  • 1 réponse
  • 2 ont ce problème
  • 102 vues
  • Dernière réponse par cor-el
  • Archivé

Yesterday I upgraded Firefox on my desktop to 4.0.1...ever since, I get a popup window that says ....JavaScript Application and below in the window uninstal set....followed by a ok button to click. I could use some help on this. Thanks.

Yesterday I upgraded Firefox on my desktop to 4.0.1...ever since, I get a popup window that says ....JavaScript Application and below in the window uninstal set....followed by a ok button to click. I could use some help on this. Thanks.

Toutes les réponses (1)

This issue can be caused by an extension that isn't working properly.

Start Firefox in Use Troubleshoot Mode in Firefox to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

In Firefox 4 you can use one of these to start in Safe mode:

  • Help > Restart with Add-ons Disabled
  • Hold down the Shift key while double clicking the Firefox desktop shortcut (Windows)