Firefox opens with a window that says "Check to ensure the compatibility of Add-ons" then he opens always 2 tabs... one with my homepage and another that said congratulations, Firefox is updated. How can I prevent the it starts like that?

Firefox opens with a window that says "Checking for compatibility for modules" then he opens always 2 tabs... one with my homepage and another that said congratulations, Firefox is in place

Rename the files work perfect! Thank you

Tags: Firefox

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