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Sometimes, changes made to preferences like toolbar settings and browser window size may not be remembered by Firefox. This article explains how to fix this.

In some instances, Firefox may not remember changes you've made to your toolbar settings or certain other configuration changes. {note}'''Note:''' If toolbars or toolbar items are missing, see [[Menu bar is missing]] and [[Back and forward or other toolbar items are missing]]. {/note} <br> 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. {for fx13} = Reset Firefox to fix the problem = Firefox's [[Reset Firefox – easily fix most problems|reset feature]] will reset toolbar preferences and disable add-ons that could be interfering. [[T:resetnote]] [[T:resetsteps]] {/for} {for not fx13} = Causes = The above symptoms are usually caused by a corrupted file in your Firefox user data, called {filepath 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 == # [[T:safemode]] # In the Firefox Safe Mode dialog, select '''Reset toolbars and controls''' and click {button Make Changes and Restart}. <br/> <br/> {for win} [[Image:50c17976d1bd6a4a7608e862ce87cf56-1259976743-499-1.png]]{/for}{for mac} [[Image:50c17976d1bd6a4a7608e862ce87cf56-1238098942-151-2.jpg]]{/for}{for linux} [[Image:50c17976d1bd6a4a7608e862ce87cf56-1263704014-536-1.png]]{/for} <br/> You should now be able to [[How to customize the toolbar|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== <!-- see http://code.google.com/p/hackbar/issues/detail?id=10 --> 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 [[Troubleshooting extensions and themes]]. {/for} <br><br> <!--MZ Credit--> '''''Based on information from [http://kb.mozillazine.org/Corrupt_localstore.rdf Corrupt localstore.rdf (mozillaZine KB)] ''''' [[Template:ShareArticle|link=http://mzl.la/MDh9tE]]