When I "rollover" the personas to try them out, nothing happens. I have to click and download just to see what it will look like. 的最新解答https://support.mozilla.org/zh-TW/questions/7321172010-07-21T13:33:42-07:00Previewing a persona only works on sites that are whitelisted via an allow exception.
Firefox > P2010-07-21T13:33:42-07:00cor-elhttps://support.mozilla.org/zh-TW/questions/732117#answer-3072<p>Previewing a persona only works on sites that are whitelisted via an allow exception.
Firefox &gt; Preferences &gt; Security&nbsp;: "Warn me when sites try to install add-ons": Exceptions
</p><p>Make sure that you do not use <a href="/en-US/kb/delete-browsing-search-download-history-firefox" rel="nofollow">Delete browsing, search and download history on Firefox</a> to clear the 'Site Preferences'.
</p><p>See <a href="http://kb.mozillazine.org/Themes#Lightweight_theme" rel="nofollow">http://kb.mozillazine.org/Themes#Lightweight_theme</a>
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