Foxmarks: Increasing the Javascript Timeout

From Foxcloud Wiki

If you have been plagued by the annoying "Unresponsive Script" dialog,

(Snapshot of dialog box is really needed here. :)
 A script on this page may be busy, or it may have stopped responding. You can stop the
  script now, or you can continue to see if the script will complete.
 [continue] [stop script]

If while syncronizing Foxmarks to the server, it appears to be stuck or un-responsive with 'Writing to sync file...' message. It is possible that Firefox (DOM communication) is timing out during the updating script process.

No matter which button you click on, the bookmark file could be corrupted. Please restart ; Firefox as soon as possible after this error.

To avoid future timeout issues, try the following procedure:

  1. In the address bar of a Firefox browser window, enter about:config
  2. In the "filter" bar, enter dom.max_script_run_time
  3. You should now be able to see a setting appear in the window below the filter bar. The setting's name should match what you entered above (dom.max_script_run_time) and most likely shows a default value of 5.
  4. Double-click this setting; Firefox will prompt you for a new value. Enter 10.

If changing this setting still causes the "Unresponsive script" dialog to re-appear, repeat the above procedure but increase the number that you enter in step #4.