Just as with other critical files on your computer, it's important to back up your bookmark list so you're ready if you upgrade your PC or experience major problems with it. The process varies depending on whether you use Chrome, Firefox or Internet Explorer, but each program provides a tool for generating and saving your bookmarks to a single file.
Open the menu in Chrome, point to Bookmarks and choose Bookmark Manager.
Open the Organize menu and select Export Bookmarks to HTML File. As of Chrome version 41, you might not see this menu, in which case click the gear icon in the corner of the window to find the export option instead. Some versions of Chrome alternately title the option Export Bookmarks.
Browse to any directory and press Save to export your favorites.
Click the Bookmarks icon and choose Show All Bookmarks in Firefox 29 and above, or press Ctrl-Shift-B as a shortcut in any version.
Open the Import and Backup menu and choose either Backup or Export Bookmarks to HTML. Exporting to HTML creates a file compatible with other browsers, while a backup is designed specifically for Firefox.
Choose the location to save your backup or export and press Save. You can save your bookmarks to any folder on your computer or directly to an external drive.
Open the File menu in Internet Explorer 10 or 11 -- press Alt-F if you can't see the menu bar -- and click Import and Export.
Select Export to a File and click Next.
Check the Favorites option, along with any other items you want to export, and click Next again.
Select the Favorites folder at the top of the window and click Next to export all of your favorites.
Type the location on your computer or on an external drive where you want to save your exported favorites, or click Browse to browse to the directory. Click Export to create the file.