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Private Browsing function is suddenly not working. Error message :"The URL is not valid and cannot be loaded." How can I repair?

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  • 16 have this problem
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  • Last reply by cor-el

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Private Browsing function is suddenly not working. Error message :"The URL is not valid and cannot be loaded." How can I fix it?

Private Browsing function is suddenly not working. Error message :"The URL is not valid and cannot be loaded." How can I fix it?

All Replies (1)

more options

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