Running other bookmark sync extensions in addition to Xmarks is know to break Xmarks and cause major interference such as duplicate bookmars. We strongly recommend disabling.

To disable sync programs completely, be sure to follow these steps on each computer. Note that your data will not be deleted from your computer but any changes made will no longer be saved, instead it will be saved within Xmarks.

How to disable Firefox Sync


If you’ve disabled your Menu Bar:

  1. Open Firefox.
  2. Select, “Firefox” located in the top left corner.
  3. Click, “Options”.
  4. Select, “Options” again.
  5. Select the “Sync” tab.
  6. Click the “Disable this device” link.
  7. Click “Reset all information” in the confirmation dialog.

If your Menu Bar is enabled:

  1. Open Firefox.
  2. Select ‘Tools’ in the Menu Bar.
  3. Click, “Options”.
  4. Select the “Sync” tab.
  5. Click the “Disable this device” link.
  6. Click “Reset all information” in the confirmation dialog.


  1. Open Firefox.
  2. Select “File” in the Firefox Menu bar.
  3. Select. “Preferences”.
  4. Click on the “Sync” tab.
  5. Click the “Disable this device” link.
  6. Click, “Reset all information” in the confirmation dialog.

How to disable Google Chrome Sync

  1. Open Google Chrome.
  2. Click on the settings icon (this icon appears as three horizontal lines), located in the top-right corner in the browser toolbar.
  3. Select, “Sign in to Chrome”.
  4. Under “Advanced Sync Settings”, select “Choose specific items to sync” in the drop down menu.
  5. Uncheck  “Bookmarks” to disable.
  6. Click “OK” to save your settings.

How to disable iCloud

  1. Open “Systems Preferences”.
  2. Select the “iCloud” icon.
  3. Uncheck “Safari”.
  4. Close “Systems Preferences”.

Duplicate Remover

Run the De-duplicator to detect and remove all duplicate bookmarks, empty duplicate folders and adjacent separators.

  1. Go to
  2. Select, “Tools”.
  3. Select, “Deduplicate Bookmarks”.
  4. A new tab will appear with three options:
    1. Xmarks Bookmarks Duplicate Remover
    2. Xmarks Empty Folder Remover
    3. Xmarks Adjacent Separator Remover
  5. Select the tool(s) that fits your need to start the detection process.
  6. Follow the instructions given to select how you want to identify your duplicates. Xmarks will automatically select the appropriate bookmarks to delete. You can then fine-tune which items should be deleted by individual checking or un-checking them.
  7. Click, “Delete” to continue.
  8. Click, “OK” in the confirmation dialogue to continue with the delete.
  9. Click, “OK” to confirm the successful delete.

Perform a download in all browsers you use to sync with Xmarks following the duplicate remover to update your local sets with your newly deduplicated server set.