Browser.sessionstore.privacy level: Difference between revisions
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Alice Wyman (talk | contribs) m (Background: linked to Session Restore article. Added "External links" section for MozillaWiki article link) |
(the default value was changed in Firefox 4; also mention browser.sessionstore.privacy_level_deferred) |
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==Possible values and their effects== | ==Possible values and their effects== | ||
===0=== | ===0=== | ||
Store extra session data for any site. | Store extra session data for any site. (Default starting with Firefox 4.) | ||
===1=== | ===1=== | ||
Store extra session data for unencrypted (non-HTTPS) sites only. (Default) | Store extra session data for unencrypted (non-HTTPS) sites only. (Default before Firefox 4.) | ||
===2=== | ===2=== | ||
Never store extra session data. | Never store extra session data. | ||
| Line 23: | Line 23: | ||
==Related bugs== | ==Related bugs== | ||
* [https://bugzilla.mozilla.org/show_bug.cgi?id=328159 Bug 328159 - Wire up the Session-data Service] | * [https://bugzilla.mozilla.org/show_bug.cgi?id=328159 Bug 328159 - Wire up the Session-data Service] | ||
* [https://bugzilla.mozilla.org/show_bug.cgi?id=424872 Bug 424872 - Support form restore for securely transmitted site (HTTPS)] - changed the default for Firefox 4. | |||
==Related preferences== | ==Related preferences== | ||
* [[browser.sessionstore.postdata]] | * [[browser.sessionstore.postdata]] | ||
* [[browser.sessionstore.privacy_level_deferred]] (new in Firefox 4) - controls what gets saved by [[Session Restore]] when quitting (not crashing or restarting to install updates/addons) with [[browser.startup.page]] not set to restore previous session on startup. The possible values for this preference are the same as described on this page. See also: [http://blog.zpao.com/post/1099464627/restore-previous-session zpao's blog post] (note that the information about the default values in that post is outdated). | |||
==External links== | ==External links== | ||
Revision as of 23:45, 28 January 2011
Background
Firefox 2.0 introduces a built-in Session Restore feature, allowing the user to continue browsing from where they left off if browser restarts. This preference controls when to store extra information about a session: contents of forms, scrollbar positions, cookies, and POST data.
Possible values and their effects
0
Store extra session data for any site. (Default starting with Firefox 4.)
1
Store extra session data for unencrypted (non-HTTPS) sites only. (Default before Firefox 4.)
2
Never store extra session data.
Recommended settings
Leaving this preference set to 1 will avoid re-submitting data to secure sites — such as banks and online stores — and prevents duplicate transactions from taking place. Use caution when setting this preference to 0.
First checked in
Has an effect in
- Mozilla Firefox (nightly builds since 2006-04-26; 2.0)
Related bugs
- Bug 328159 - Wire up the Session-data Service
- Bug 424872 - Support form restore for securely transmitted site (HTTPS) - changed the default for Firefox 4.
Related preferences
- browser.sessionstore.postdata
- browser.sessionstore.privacy_level_deferred (new in Firefox 4) - controls what gets saved by Session Restore when quitting (not crashing or restarting to install updates/addons) with browser.startup.page not set to restore previous session on startup. The possible values for this preference are the same as described on this page. See also: zpao's blog post (note that the information about the default values in that post is outdated).
