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Error message pops up switching tabs. What would cause a tab to flash out to a new window?

Firefox
cor-el je před před 15 lětami wotmołwił
dialthegate
dialthegate

When switching tabs I get a popup box with. Exc in ev handl: Error: Bad NPObject as private data!

I am trying to figure out if was the last firefox update or the last McAfee update?

When switching tabs I get a popup box with. Exc in ev handl: Error: Bad NPObject as private data! I am trying to figure out if was the last firefox update or the last McAfee update?

Wšě wotmołwy (1)

cor-el
cor-el
  • Moderator

This issue can be caused by the McAfee Site Advisor extension

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).