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is there any practical difference between "always use private browsing mode" and "clear history when firefox closes" ? thanks

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Windows 10 Pro N 1809 17763.529 Firefox 67.0 64-bit

thanks

Windows 10 Pro N 1809 17763.529 Firefox 67.0 64-bit thanks
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  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0

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cor-el
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17472 solutions 157915 answers

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When you use PB mode then all session data is kept in memory and no session data (disk cache, cookies, storage) is saved to the profile folder although you can save new bookmarks and save passwords and save exceptions. All cookies will be session cookies that expire automatically, so websites can't store persistent data.

With "Clear history when Firefox closes" you can only clear some specific data similar to "Clear Recent History". There is also a Forget (panic) button available in the Customize palette. From the perspective of a website there is not much difference although a website can try to run JavaScript that doesn't work in PB mode to detect PB.


When you use PB mode then all session data is kept in memory and no session data (disk cache, cookies, storage) is saved to the profile folder although you can save new bookmarks and save passwords and save exceptions. All cookies will be session cookies that expire automatically, so websites can't store persistent data. With "Clear history when Firefox closes" you can only clear some specific data similar to "Clear Recent History". There is also a Forget (panic) button available in the Customize palette. From the perspective of a website there is not much difference although a website can try to run JavaScript that doesn't work in PB mode to detect PB. ---- *https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox *https://support.mozilla.org/en-US/kb/forget-button-quickly-delete-your-browsing-history *https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history

Modified by cor-el

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jscher2000
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8693 solutions 71056 answers

For comparison, what is the difference between cleaning up really well after a party at my house, versus having the party at someone else's house? When the party is at someone else's house, at no time does my house show any evidence that I'm partying.

For comparison, what is the difference between cleaning up really well after a party at my house, versus having the party at someone else's house? When the party is at someone else's house, at no time does my house show any evidence that I'm partying.
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Question owner

thanks guys for the quick responses.....appreciated.

thanks guys for the quick responses.....appreciated.
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