This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Wo archive tread sia. Meɖekuku bia biabia yeye ne ehia kpeɖeŋu.

I can't open FF and get message: Error: a is undefined

  • 2 ŋuɖoɖowo
  • 2 masɔmasɔ sia le wosi
  • 1 view
  • Nuɖoɖo mlɔetɔ JoanBrevard

JoanBrevard
JoanBrevard
more options

FF won't open, even if in safe mode. Under FF, I get an error box with the message "Error: a is undefined" the error info is "Source File: http://www.google.com/extern_js/f/CgJlbhICdXMrMFo4ACwrMA44ACwrMBc4ACwrMDw4ACwrMFE4ACwrMFk4ACwrMAo4AEBdmgICcHMsKzAWOAAsKzAZOAAsKzAlOAAsKzAqOAAsKzArOAAsKzA1OAAsKzBAOAAsKzBBOAAsKzBNOAAsKzBOOAAsKzBTOAAsKzBUOAAsKzBfOAAsKzBjOAAsKzBpOAAsKzB0OAAsKzAdOAAsKzBcOAAsKzAYOAAsgAI8kAI2/BFKlF3L_Vtk.js Line: 333" What is solution?

FF won't open, even if in safe mode. Under FF, I get an error box with the message "Error: a is undefined" the error info is "Source File: http://www.google.com/extern_js/f/CgJlbhICdXMrMFo4ACwrMA44ACwrMBc4ACwrMDw4ACwrMFE4ACwrMFk4ACwrMAo4AEBdmgICcHMsKzAWOAAsKzAZOAAsKzAlOAAsKzAqOAAsKzArOAAsKzA1OAAsKzBAOAAsKzBBOAAsKzBNOAAsKzBOOAAsKzBTOAAsKzBUOAAsKzBfOAAsKzBjOAAsKzBpOAAsKzB0OAAsKzAdOAAsKzBcOAAsKzAYOAAsgAI8kAI2/BFKlF3L_Vtk.js Line: 333" What is solution?

Ŋuɖoɖo si wotia

  • "Clear the Cache": Firefox > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"
  • "Remove the Cookies" from sites causing problems: Firefox > Preferences > Privacy > Cookies: "Show Cookies"

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

  • Don't make any changes on the Safe mode start window.

See:

Xle ŋuɖoɖo sia le goya me 👍 0

All Replies (2)

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

Ɖɔɖɔɖo si wotia

  • "Clear the Cache": Firefox > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"
  • "Remove the Cookies" from sites causing problems: Firefox > Preferences > Privacy > Cookies: "Show Cookies"

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

  • Don't make any changes on the Safe mode start window.

See:

JoanBrevard
JoanBrevard Biabia la
more options

Clearing the Cache as described worked. Thank you very much.