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I get this message quite often on screen 'a script on this page doesn't work.'

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Lately, when browsing with Mozilla, I get the following message on my screen quite often : 'a script on this page does not work. Do you want to continue or stop ?' Regardless of what I decide to do (that is click to continue or stop) the same message appears again and again. How can I fix this  ?

Lately, when browsing with Mozilla, I get the following message on my screen quite often : 'a script on this page does not work. Do you want to continue or stop ?' Regardless of what I decide to do (that is click to continue or stop) the same message appears again and again. How can I fix this ?

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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.

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.


Create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

If the new profile works then you can transfer some files from an existing profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem