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Firefox stores your personal information and settings in a profile folder. This article explains how to back up and restore this important data.

Mozilla Firefox stores all your personal settings, such as bookmarks, passwords and extensions, in a '''[[Profiles - Where Firefox stores your bookmarks, passwords and other user data|profile]] folder''' on your computer, in a location separate from the Firefox program. This article explains how to back up your profile, restore it, or move your profile to a new location or computer. *To restore or move selected information instead of the entire profile, see [[Recovering important data from an old profile]]. * '''Just Bookmarks?''' For backing up, restoring, or moving your bookmarks (not other data), see [[Restore bookmarks from backup or move them to another computer]]. __TOC__ = Locate your profile folder = {for win} The default location of the Firefox profile folder is '''{filepath %APPDATA%\Mozilla\Firefox\Profiles\xxxxxxxx.default\}'''. * {filepath %APPDATA%} is shorthand for the {for win7,win8}{filepath C:\Users\<username>\AppData\Roaming\}{/for}{for winxp}{filepath C:\Documents and Settings\<username>\Application Data\}{/for}{/for} folder, which depends on your Windows user account name. {/for} {for mac} The default location of the Firefox profile folder is '''{filepath ~/Library/Application Support/Firefox/Profiles/xxxxxxxx.default/}'''. {/for} {for linux} The default location of the Firefox profile folder is '''{filepath ~/.mozilla/firefox/xxxxxxxx.default/}'''. {/for} * {filepath xxxxxxxx} represents a random string of 8 characters. You can locate your profile folder using these instructions: {for win7} # Click the Windows {button Start} button, and type {filepath %APPDATA%\Mozilla\Firefox\Profiles\} in the search box at bottom of the Start menu, without pressing Enter. # A list of profiles will appear at the top of the Start menu. You can click on any of the profiles (e.g. xxxxxxxx.default) to open it with Windows Explorer. [[Image:98ed7b83d09ef2c94285fcf99165ff31-1258904886-852-1.png]] {/for} {for winxp} # Click the Windows {button Start} button, and select {menu Run…}.<br/> <br/>[[Image:win-run.png]]<br/><br/> # Type in {filepath %APPDATA%\Mozilla\Firefox\Profiles\} and then click {button OK}.<br/> <br/>[[Image:win-rundialog.png]] Windows Explorer will open the {filepath Profiles} folder, which contains a folder for each profile. {/for} {for win8} #Open the Charms and select {button Search}. #Search for '''Run''' in ''Apps''. #Select Run in the search results and you will be taken to the Desktop with the Run app open. #In the Run app, type '''{filepath %APPDATA%\Mozilla\Firefox\Profiles\}''' and then press {key Enter}. Windows Explorer will open the {filepath Profiles} folder, which contains a folder for each profile. {/for} {for mac} # Click the '''Finder''' icon in the dock. # On the menu bar, click the {menu Go} menu and select {menu Go to Folder…}. # In the '''Go to Folder''' window, paste in this text: '''~/Library/Application Support/Firefox/Profiles''' and then click {button Go}. # A window will open containing profile folders. # Double-click the folder with “default” in the name to open it. {/for} {for linux} # '''(Ubuntu)''' Click the {menu Places} menu on the top right of the screen and select {menu Home Folder}. A File Browser window will appear. # Click the {menu View} menu and select {menu Show Hidden Files} if it isn't already checked. # Double click the folder marked {filepath .mozilla}. # Double click the folder marked {filepath firefox}. Your profile folders are within this folder. {/for} = Backing up your profile = To back up your profile, first close Firefox if it is open and then copy the profile folder to another location. # [[T:closeFirefox]] # Locate your profile folder, as explained above. # Go to one level above your profile's folder, i.e. to {filepath {for win}%APPDATA%\Mozilla\Firefox\Profiles\{/for}{for mac}~/Library/Application Support/Firefox/Profiles/{/for}{for linux}~/.mozilla/firefox/{/for}} # {for win,linux}Right-click{/for}{for mac}Hold down the {key Ctrl} key while you click{/for} on your profile folder (e.g. {filepath xxxxxxxx.default}), and select {menu Copy}. # {for win,linux}Right-click{/for}{for mac}Hold down the {key Ctrl} key while you click{/for} the backup location (e.g. a USB-stick or a blank CD-RW disc), and select {menu Paste{for mac} item{/for}}. = Restoring a profile backup = # [[T:closeFirefox]] # If your existing profile folder and profile backup folder have the same name, simply replace the existing profile folder with the profile backup, then start Firefox. {note}'''Important:''' The profile folder names must match exactly for this to work, including the random string of 8 characters. If the names do not match or if you are restoring a backup to a different location, follow the steps below.{/note} == Restoring to a different location == If the profile folder names do not match or if you want to move or restore a profile to a different location, do the following: # Completely close Firefox, as explained above. #[[Use the Profile Manager to create and remove Firefox profiles|Use the Firefox Profile Manager to create a new profile]] in your desired location, then exit the Profile Manager. {note}'''Note:''' If you just installed Firefox on a new computer, you can use the default profile that is automatically created when you first run Firefox, instead of creating a new profile.{/note} #Locate the backed up profile folder on your hard drive or backup medium (e.g., your USB-stick). #Open the profile folder backup (e.g., the {filepath xxxxxxxx.default} backup). #Copy the entire ''contents'' of the profile folder backup, such as the {filepath mimeTypes.rdf} file, {filepath prefs.js} file, {filepath bookmarkbackups} folder, etc. #Locate and open the new profile folder as explained above and then close Firefox (if open). #Paste the contents of the backed up profile folder into the new profile folder, overwriting existing files of the same name. #Start Firefox. 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