Changes to toolbars and window sizes are not saved

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  • Creator: AliceWyman
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In some instances, Firefox may not remember changes you've made to your toolbar settings or certain other configuration changes.

This article explains how to fix the underlying problem that may result in one or more of the following symptoms:

  • Changes that you made to your toolbars are not saved when you restart Firefox.
  • Changes made to the browser window's size and position are not remembered when you restart Firefox.
  • You cannot save new bookmarks.


The above symptoms are usually caused by a corrupted file in your Firefox user data, called localstore.rdf. This file is maintained by Firefox to manage some of your configuration settings.

Another possible cause is a misbehaving Firefox extension.

Fixing the problem

Resetting localstore.rdf

Click the menu button New Fx Menu , click help Help-29 and select Restart with Add-ons Disabled.... Firefox will start up with the Firefox Safe Mode dialog.

Note: You can also start Firefox in Safe Mode by holding down the shift key while starting Firefox.holding down the option key while starting Firefox.quitting Firefox and then going to your Terminal and running: firefox -safe-mode
You may need to specify the Firefox installation path (e.g. /usr/lib/firefox)

In the Firefox Safe Mode dialog, select Reset toolbars and controls and click Make Changes and Restart.

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You should now be able to customize your toolbar settings and controls, change the browser window size or position, and save new bookmarks, and those changes will be remembered when you restart Firefox.

Disabling extensions

If the previous solution did not help, you can temporarily disable all extensions and then restart Firefox. If the symptoms go away then one of your extensions was causing the problem. For more information, read Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems.

Based on information from Corrupt localstore.rdf (mozillaZine KB)