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gmail in tab displays [object window]

  • 2 replies
  • 1 has this problem
  • 4 views
  • Last reply by dtaenzer

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I have a tab with gmail (mail.google.com). When I go to another tab and then come back it occationalls displays "[object window]". This only happens occasionally and is fixed when I refresh the tab. Any ideas on what might be causing this problem? Thanks.

I have a tab with gmail (mail.google.com). When I go to another tab and then come back it occationalls displays "[object window]". This only happens occasionally and is fixed when I refresh the tab. Any ideas on what might be causing this problem? Thanks.

All Replies (2)

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Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" for websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear
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Thank you very much. It appears that it was the hardware acceleration which I found quite surprising. I turned that off and have not seen the problem since. Thanks.