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Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

"Error: TypeError: Preferences.get is not a function" keeps popping up when opening Firefox.

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kwb400
kwb400
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The replies to previos inquiries by other users don't explain how to fix problem, they just say to open safe mode.

The replies to previos inquiries by other users don't explain how to fix problem, they just say to open safe mode.

All Replies (4)

kubahaha
kubahaha
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What is your homepage? (Web page which open first, with Firefox)

cor-el
cor-el
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  • Top 10 Contributor
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This issue can be caused by an extension that isn't working properly.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe mode start window or otherwise make changes.
kwb400
kwb400 Úinéir na ceiste
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It opens with Google as the homepage.

cor-el
cor-el
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  • Top 10 Contributor
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Do you have the "Default Tab" extension?

  • Tools > Add-ons > Extensions