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!

Avatar for Username

Przeszukaj pomoc

Unikaj oszustw związanych z pomocą.Nigdy nie będziemy prosić Cię o dzwonienie na numer telefonu, wysyłanie SMS-ów ani o udostępnianie danych osobowych. Zgłoś podejrzaną aktywność, korzystając z opcji „Zgłoś nadużycie”.

Learn More

Wątek został zarchiwizowany. Jeśli potrzebujesz pomocy, zadaj nowe pytanie.

what happened:.... this is the popup message TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined

  • 1 odpowiedź
  • 84 osoby mają ten problem
  • 1 wyświetlenie
  • Ostatnia odpowiedź od cor-el

collinge
collinge
more options

Just upgraded to Version 5 - same problem.


" TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined"


This is the popup message I get when starting up Firefox. When I ok or kill the popup Firefox seems to work. This problem started when I upgraded the Windows 7 and install the latest Firefox (version 4 I think) about two months ago. Occurs on both the desktop and laptop. Any suggestions? Thanks

Just upgraded to Version 5 - same problem. " TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined" This is the popup message I get when starting up Firefox. When I ok or kill the popup Firefox seems to work. This problem started when I upgraded the Windows 7 and install the latest Firefox (version 4 I think) about two months ago. Occurs on both the desktop and laptop. Any suggestions? Thanks

Wszystkie odpowiedzi (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

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