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

JoanBrevard
JoanBrevard
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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?

Chosen solution

  • "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:

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All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Chosen Solution

  • "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 Question owner
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Clearing the Cache as described worked. Thank you very much.