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Firefox can restore all windows and tabs that were open when it was last closed or terminated unexpectedly. This article describes the circumstances under which Firefox will restore your previous session and how you can configure it.

Firefox can restore all windows and tabs that were open when it was last closed or terminated unexpectedly. This article describes the circumstances under which Firefox will restore your previous session and how you can configure it. {note}'''Note:''' Session Restore may keep you logged into sites that you were logged into before you closed Firefox. For more information, see [[#w_privacy-issues|Privacy issues]].{/note} __TOC__ = When session restore occurs = {for fx35} ==When you tell Firefox to save your tabs on exit== Firefox normally asks, "Do you want Firefox to save your tabs for the next time it starts" when you exit Firefox. If you no longer see this prompt, see [[Firefox does not ask to save tabs and windows on exit]]. {/for} {for fx4} ==When you select Restore Previous Session from the default home page== If you had tabs and windows open when you last closed Firefox, the default Firefox home page will have a {button Restore Previous Session} button on it. To get your tabs and windows back, just click it. {for win}[[Image:Restore Previous Session - Win1]]{/for} {note}'''Note:''' If you've set your home page to something other than the default Firefox home page, you can [[How to set the home page#w_restore-the-default-home-page|restore the default home page]].{/note} == When you select Restore Previous Session from the History menu== Here's how to get your tabs and windows from a previous session back if you don't use the default Firefox home page: {for win}At the top of the Firefox window, click the {button Firefox} button, go over to {menu History} ({menu History} menu in Windows XP) and select {menu Restore Previous Session}.{/for}{for mac}On the menu bar, click the {menu History} menu and select {menu Restore Previous Session}.{/for}{for linux}At the top of the Firefox window, click the {menu History} menu and select {menu Restore Previous Session}.{/for} {/for} == After installing an add-on == When a new extension or theme is installed, you must restart Firefox to enable the new add-on. To restart, click {button Restart {for fx4}Now{/for}{for fx35}Firefox{/for}}. All windows and tabs are re-opened when Firefox restarts and installs the new add-on.{for win, fx4}[[Image:Restore Previous Session - Win3]]<br>{/for}{for win, fx35}[[Image:50d69608d844b9c206ea8615c091cae1-1258706212-695-1.png]]<br>{/for} == After a software update == To apply any updates to the Firefox application that have been downloaded, you must restart Firefox. To restart, click {for fx35}{button Restart Firefox}{/for}{for fx4}{button Apply Update}{/for}. {for win,fx4}<br>[[Image:Update Win2]]{/for}{for mac,fx4}<br>[[Image:Update Mac2]]{/for}{for linux,fx4}<br>[[Image:Update Lin2]]{/for} {for fx4} == After restarting with add-ons disabled == Some problems may be caused by some extensions or themes. To troubleshoot them, you need to restart Firefox with add-ons disabled: #{for win}At the top of the Firefox window, click the {button Firefox} button, go over to {menu Help} ({menu Help} menu in Windows XP) and select {menu Restart with Add-ons Disabled...}.{/for}{for mac}On the menu bar, click the {menu Help} menu and select {menu Restart with Add-ons Disabled...}.{/for}{for linux}At the top of the Firefox window, click the {menu Help} menu and select {menu Restart with Add-ons Disabled...}.{/for} # In the Restart With Add-ons Disabled window, click {button OK}. # In the Firefox Safe Mode window, click {button Continue in Safe Mode} to finish the restart. {/for} == After a crash == Due to unexpected issues such as problems with a website, software errors, or an accidental loss of power, Firefox may unexpectedly close. In these situations, Firefox can restore the pages that you were visiting when it is restarted. Firefox will automatically restore your previous session, the first time you launch it after a crash. <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=448976#c10 --> If Firefox crashes a second time, the Restore Session (i.e. "''Well, this is embarrassing''") page will appear when you next launch Firefox. <br> [[Image:FxCrash-RestoreSession]] <br> * To restore your previous session, select the windows or tabs you want to restore and click {button Restore}. * If Firefox continues to experience errors when windows and tabs are re-opened, you can launch Firefox either without restoring these items by clicking {button Start New Session}, or restoring only some you think they are safe by unchecking others and clicking {button Restore}. ==When you've set Firefox to show your windows and tabs from last time== You can set Firefox to always show your windows and tabs from your previous session each time you start Firefox. To change your Firefox startup settings, see [[#w_configuring-session-restore|Configuring session restore]], below. =Configuring session restore= By default, when Firefox starts, a single window is opened, displaying your specified home page. If you wish, you can configure Firefox to open all windows and tabs from your previous session: {for win,fx4}[[Image:Restore Previous Session - Win4]]{/for}{for win,fx35}[[Image:50d69608d844b9c206ea8615c091cae1-1258706212-695-2.png]]{/for} # [[T:optionspreferences]] # Select the {menu General} panel{for fx35} ({menu Main} panel in Firefox 3.5){/for}. # From the When Firefox starts drop-down, select '''Show my windows and tabs from last time'''. # [[T:closeOptionsPreferences]] = Privacy issues = Session Restore may keep you logged in to sites that you were logged into before you closed Firefox. If someone else used your computer after you, they could access your account on these sites. If this is a concern then you should not configure Firefox to open all windows and tabs from your previous session. You may also wish to disable the Session Restore crash recovery feature which is enabled by default. This will prevent restoring a previous session when Firefox is opened after an unexpected close or software crash: # [[T:aboutconfig]] # Find {pref browser.sessionstore.resume_from_crash} in the list # Double-click on {pref browser.sessionstore.resume_from_crash} to set it to {pref false}. = Troubleshooting = == Previous session not correctly closed == To get your tabs and windows back from a previous session, you should close Firefox from the menu: [[T:closeFirefox]] If you close each window or tab, only the tabs in the final window that you close are available when you restart Firefox. == Settings may be incorrect == For other session restore problems, you may need to make corrections to your Firefox settings: # [[T:optionspreferences]] # Select the {menu Privacy} panel and make sure '''Firefox will:''' is set to either '''Remember history''' or '''Use custom settings for history'''. #* If '''Firefox will:''' is set to '''Use custom settings for history''' then make sure that {for fx35}'''Automatically start Firefox in a private browsing session'''{/for}{for fx4}'''Permanent Private Browsing mode'''{/for} is not selected. #* If '''Firefox will:''' is set to '''Use custom settings for history''' and '''Clear history when Firefox closes''' is selected, then click the {button Settings} button and make sure that '''Browsing History''' is not selected. # [[T:closeOptionsPreferences]] <!-- MZ credit --> <br/> <br/> '''''Based on information from [http://kb.mozillazine.org/Session_Restore Session Restore (mozillaZine KB)]'''''