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I get "overLIB 4.10 or later is required for the CSS Style Plugin" every time I open certain sites, could you tell me what I need to do for this? Thank you.

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I get "overLIB 4.10 or later is required for the CSS Style Plugin" on certain websites, could you please advice me as to what to do to stop this window from popping up? Thank you

I get "overLIB 4.10 or later is required for the CSS Style Plugin" on certain websites, could you please advice me as to what to do to stop this window from popping up? Thank you

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Troubleshooting Plugins

https://support.mozilla.com/en-US/kb/Troubleshooting%20plugins

Check and tell if its working.