How To Keep Your Bookmarks Synced Across Computers With Firefox 4

Jeffry Thurana 05-04-2011

<firstimage=”//”>firefox sync bookmarksI admit it – I’m not a loyal Firefox user. I stopped using it long ago since it constantly hogged and slowed down my system. But that’s about to change. After a year since the last major version was released, Mozilla has launched Firefox 4 with the promise of a lighter and speedier browsing experience.


In order to win back the hearts of its users, the latest version of the Fox offers many improvements and new features. One of the new features is “Firefox Sync” which will help users to synchronize their bookmarks across computers. While the feature might not be useful for users with one computer, those who work with multiple computers will really appreciate this ability.

Setting Up The Sync Environment

  • To utilize the sync feature, make sure that all of your computers have Firefox 4 installed.  If your Firefox is still the older version, you need to download the latest version first.

firefox sync bookmarks

  • After Firefox 4 is installed, open it up and go to the “Set Up Sync” menu. In the Mac version, this menu is located under “Tools“; while in the Windows version, it’s under the “Firefox” menu.

bookmark syncing firefox

  • You can choose one of the computers to start setting up your Firefox Sync account and add the other computers to the account later. Click the “Create a New Account” button in the “Firefox Sync Setup” window.

bookmark syncing firefox

  • Continue by filling in your email address and chosen password in the Account Details.

bookmark syncing firefox

  • You will get the “Sync Key”. You will use the key to set up and add another computer to the sync account. Due to its importance, it’s advisable to save the key and keep it safe.

01d Firefox Sync Setup key

  • The key will be saved as an HTML file. If you have a Dropbox account and have the application installed on the other computers that you use, it’s a good idea to save the Firefox Sync Key file in the Dropbox folder so you can access it easily.

01e Save Sync Key

  • Now the set up process is complete. Click the “Done” button to wrap up.

01g Firefox Sync Setup Done

Adding Other Firefoxes To The System

The next step is to add other Firefoxes in other computers to your account.

  • Go to the “Set Up Sync” menu on the other Firefox and start the setup process again.

firefox sync

  • But now click the “Connect” button instead of “Create A New Account“.

firefox sync

  • You will see “Add a Device” window and you will have three sets of codes. Leave this window open for a while and go back to the first computer where you set up the Firefox Sync account.

firefox sync

  • In the first computer, open “Preferences” and choose the “Sync” tab. Click the “Add a Device” link and write down the three codes that you got in the previous step.

firefox sync bookmarks

  • It’s possible that you may not have the first computer with you when you add another computer to your sync account. In this case, click the “I don’t have the device with me” link under the three sets of codes. This other option requires you to sign in with your Sync account. Type in your email address and password. Open the saved Firefox Sync Key HTML file and type in the Sync Key.

firefox sync bookmarks

  • And that’s it. You’ve just added another computer to your sync account. Repeat the process for other computers that you use and you are ready to sync your bookmarks across computers.

03z Setup Complete

  • To start syncing, open the Firefox menu and choose “Sync Now” under Windows or “Tools – Sync Now” under Mac.

firefox sync bookmarks

If you are an Android phone user, you can also use the sync feature by installing Firefox on your phone. There’s no Firefox version available for iPhone, but iPhone users can use an app called Firefox Home that will sync and store your Firefox bookmarks.


What do you think of multi-computer bookmark sync systems? Do you use them? Do you prefer Firefox’s built-in system or do you have a better alternative that you use? Share your opinions and knowledge using the comments below.

Related topics: Mozilla Firefox, Online Bookmarks.

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  1. rMatey180
    April 9, 2011 at 6:37 pm

    Happy with FF4. Zooms pretty good, even with Adblock Plus, Beef Taco, Better Privacy, Download Helper, Evernote Web Clipper, Ghostery, Speed Dial ,Vacuum Places Improved and Webmail Ad Blocker installed.
    I'm synching between my Linux netbook for tech School, my Linux Laptop, and My Linux and Win7 Desktops. I'm into computer forensics and I just need seperate desktops. Evernote and FF4 Synch keeps everything humming.

  2. Anomaly
    April 9, 2011 at 5:33 pm

    If you stopped using Firefox because "it constantly hogged and slowed down my system" than you won't be much happier with FF4. It uses twice as much RAM as FF3.6 did on all my systems. It's fast and stable but a resource hog. It seems to be the way it's going for all browsers though. Chrome, Opera, FF, IE, and Safari are all using much more RAM than previous versions did.

  3. Stschatz
    April 6, 2011 at 12:21 pm

    Save your Sync Key, Save your Sync Key, Save your Sync Key, Save your Sync Key!!!

    My laptop hard drive died and I had not saved my Sync Key. The data was on the Sync server but I couldn't access it without the key.

    This seems to be one very big flaw in the design in my opinion.

    • Tina
      April 6, 2011 at 5:19 pm

      Can't you retrieve it via email? In any case, I recommend to save it via Dropbox or Google Mail. As random as possible, but recognizable to you.

  4. Eddy Reyes
    April 6, 2011 at 1:50 am

    I liked hope this will not slow my browser.

    • Anonymous
      April 6, 2011 at 2:50 am

      Since the feature is built in, I think it won't slow down the browser like plugins do.

  5. Yehoshua
    April 5, 2011 at 6:32 pm

    I'd really like to useFF Mobile/sync, but it doesn't run (isn't available for download) for MT3GS. It's quite annoying.

    • Anonymous
      April 6, 2011 at 2:49 am

      I'm not an Android user, but I heard that the sync also available for Firefox mobile?