Issues related to Private Browsing: Difference between revisions

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===Bookmarks favicons===
===Bookmarks favicons===
* Bookmarks created while in PB mode won't get a favicon. If you leave PB mode and use that bookmark then the favicon should appear. ([https://bugzilla.mozilla.org/show_bug.cgi?id=535811 Bug 535811 <!-- Favicons reset to default every time I restart firefox -->])
* Bookmarks created while in PB mode won't get a favicon. If you leave PB mode and use that bookmark then the favicon should appear. ([https://bugzilla.mozilla.org/show_bug.cgi?id=535811 Bug 535811 <!-- Favicons reset to default every time I restart firefox -->])
* [http://kb.mozillazine.org/Live_Bookmarks_-_Firefox Live Bookmarks] (RSS feeds) items that you have visited won't get a favicon to give them a visited state.


===Cache===
===Cache===

Revision as of 07:12, 10 February 2010


This article will concentrate on describing how Private Browsing works and what issues you can encounter if you are in "Private Browsing" mode.
For brevity this article will use PB to refer to "Private Browsing" mode.

If you are in PB mode then any feature that requires storing data to a file on the hard drive is disabled. This means that Firefox will not use the disk cache but only the memory cache if enabled.
No new history is kept and that also means no indication of visited links. You still have access to history that was kept in previous normal mode sessions.
All cookies created while in PB mode are session cookies that expire if you end that PB mode session.

Check for Private Browsing mode

You are in "Private Browsing" mode if you see (Private Browsing) in the title bar or if you see a "Stop Private Browsing" entry in the Tools menu. If that menu entry is grayed then that means that you run Firefox automatically in "Private Browsing" mode. You enter that automatic state either via Tools -> Options > Privacy > History: Firefox will: "Never Remember History" or via Tools -> Options > Privacy, choose the setting Firefox will: Use custom settings for history -> "Automatically start Firefox in a private browsing session". The commandline switch -private will open a permanent PB session that can't be ended unless you restart Firefox without the -private switch.
This automatic PB change will become effective immediately without closing existing tabs (!) and can be used to swap cookies or clear all the private data that you made in PB mode (toggle twice to stay in PB mode; pref browser.preferences.instantApply) or to visit a website that you do not want to save history or other data (cookies) from. If you leave auto PB mode then Firefox will clear the memory cache and all cookies and start using the disk cache once again and start keeping new history and you have once again access to cookies that were created in normal (non-PB) mode.

Known issues

If you are in PB mode then some menu items and other features will be disabled or not available.

Bookmarks favicons

  • Bookmarks created while in PB mode won't get a favicon. If you leave PB mode and use that bookmark then the favicon should appear. (Bug 535811 )
  • Live Bookmarks (RSS feeds) items that you have visited won't get a favicon to give them a visited state.

Cache

In PB mode only the memory cache is used and you can't clear the disk cache as long as you are in PB mode.

  • If you use Tools -> Options > Advanced > Network > Offline Storage (Cache): "Clear Now" then only the memory cache will be cleared.

Certificate exceptions

  • It is not possible to make a permanent exception to accept a certificate in case of an SSL error.

Cookies

  • All cookies are session cookies that expire if the PB session is ended or you close (exit) Firefox.
  • You do not have access to cookies that were created and saved in normal mode.
  • If cookies are enabled then new session cookies will be created if you visit a website in PB mode.
  • In PB mode you can still make an allow or block exception and existing exceptions are still honored.
  • Exceptions that you make in PB mode are retained if you end a PB session.

Menu items grayed

  • If "Tools -> Stop Private Browsing" is grayed then you are running Firefox automatically in PB mode. You have to go to "Tools -> Options -> Privacy" to disable PB mode by removing the check mark on Automatically start Firefox in a private browsing session.
  • "File -> Import" is grayed, so you can't import Bookmarks and other data.

Passwords

  • Firefox won't offer to store a new password if you access a website and enter a name and password. You still have access to stored passwords, but Firefox won't autofill the name and password. You need to open the name list with a double click in the name empty field. (Bug 539623 )

Permissions

You can find the permissions (exceptions) for the currently displayed website in "Tools > Page Info > Permissions".

  • New exceptions that you make while in PB mode (cookies, images, pop-ups, software) will be kept after leaving PB mode.

Saved form data

  • Firefox won't store new entries, but you have access to entries that were stored in a normal session.

Site Preferences

  • Firefox won't store or keep site preferences while in PB mode. Currently only the Text and Page Zoom ("View > Zoom") falls in that category and if you zoom a web page in a tab then the zoom is reset to the default if you open a link in the same or another tab. (Bug 539016 )

See also

Extensions

External links

[[Category:Issues_(Firefox)]]