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Unable to preview fire fox Personas when scrolled over. Previously, I was able to preview the personas.

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Hi, I am unable to preview firefox personas when I scroll over my cursor to the personas. Previously, I was able to preview it before clicking wear it. Can you help me?

This happened

Every time Firefox opened

== I'm not too sure. I think during this month, May.

Hi, I am unable to preview firefox personas when I scroll over my cursor to the personas. Previously, I was able to preview it before clicking wear it. Can you help me? == This happened == Every time Firefox opened == I'm not too sure. I think during this month, May.

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Previewing personas only works on sites that are white-listed via an allow exception. Tools > Options > Security : "Warn me when sites try to install add-ons": Exceptions

Make sure that you do not use Delete browsing, search and download history on Firefox to clear the 'Site Preferences'.

See http://kb.mozillazine.org/Themes#Lightweight_theme