If you've been using Firefox 13, you may have noticed how a particular new feature can expose your private browsing history. Specifically, the browser presents a thumbnail tab view of recently visited sites generated by taking snapshots as you surf from site to site. These thumbnails are aggregated on a page that effectively calls out all the sites you've visited. This feature even applies to SSL-protected sites, according to some users, and should be addressed by Mozilla. There are signs that the uptake of Firefox 13 is also going slower than planned.
Mozilla has conceded that the feature should be adjusted and is at work on it, according to an email sent out by the company.
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