We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Om de ûnderfining foar jo te ferbetterjen is tydlik de funksjonaliteit dan dizze website troch ûnderhâldswurk beheind. Wannear in artikel jo probleem net oplost en jo in fraach stelle wolle, kin ús stipemienskip jo helpe yn @FirefoxSupport op Twitter en /r/firefox op Reddit.

Avatar for Username

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

How can I go back to the previous version before firefox4, some of my addons etc guarded ID , does not work with 4

  • 1 antwurd
  • 6 hawwe dit probleem
  • 2 werjeftes
  • Lêste antwurd fan Xircal

fisherfan57
fisherfan57
more options

error on java script application: Type Error:obj is undefined appears

error on java script application: Type Error:obj is undefined appears

Alle antwurden (1)

Xircal
Xircal
more options

Sorry to hear about your problems.

Go to Download Firefox v3.6.16 and download it to the desktop.

Then go to Add/Remove Programs, scroll down to Mozilla Firefox and remove it, choosing to keep your bookmarks, customizations etc., (don't checkmark the box).

Then reboot and delete the folder called Mozilla Firefox at this location: C:\Program Files\Mozilla Firefox

Finally run the installation file you downloaded.

After you complete the installation, go to the Plugins Check page and update those if necessary.