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How do I keep Firefox 18.0.1 from saving thumbnails of the sites I visit into a folder on my PC?

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How do I keep Firefox 18.0.1 from saving thumbnails of the sites I visit into a folder on my PC? Anybody can view those .png files, and I shouldn't have to start clearing my cache and deleting folders everytime I log out just because my browser had decided to tattle on my every move.

Chosen solution

hello SepiaAndDust, to disable the creation of cached thumbnails enter about:config into the firefox location bar (confirm the info message in case it shows up). right-click somewhere in the page and create a new boolean preference named browser.pagethumbnails.capturing_disabled set to true.

https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/browser.pagethumbnails.capturing_disabled

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502

Application

  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 Firefox/18.0

More Information

philipp
  • Top 10 Contributor
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2046 solutions 8901 answers

Chosen Solution

hello SepiaAndDust, to disable the creation of cached thumbnails enter about:config into the firefox location bar (confirm the info message in case it shows up). right-click somewhere in the page and create a new boolean preference named browser.pagethumbnails.capturing_disabled set to true.

https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/browser.pagethumbnails.capturing_disabled

Question owner

Thanks! Seems to have worked.

cor-el
  • Top 10 Contributor
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10762 solutions 96861 answers

You can also create a new Boolean pref pageThumbs.enabled pref and set the value to false (resource:///modules/PageThumbs.jsm)