Changes to toolbars and window sizes are not saved
In some instances, Firefox may not remember changes you've made to your toolbar settings or certain other configuration changes, like window size or position.
This article explains how to fix the underlying problem that may result in one or more of the following symptoms:
- You have added, rearranged or removed buttons from your toolbar, but the changes are not saved when you restart Firefox.
- You have resized or moved the browser window, but the new size and position are not remembered when you restart Firefox.
- You cannot save new bookmarks.
Here are two ways that you can solve the problem:
Solution 1: Delete xulstore.json file
You may have a corrupt xulstore.json file in your Firefox profile. You can delete this file so that Firefox can create a new one.
At the top of the Firefox window, click on the button, go over to the menuOn the menu bar, click on the menuAt the top of the Firefox window, click on the and select menu . The Troubleshooting Information tab will open.Click the menu button , click help and select . The Troubleshooting Information tab will open.
- Under the Application Basics section, click on filesfolder will open. . A window with your profile
- Close Firefox:
At the top of the Firefox window, click on the button and then select At the top of the Firefox window, click on the menu and then select On the menu bar, click on the menu and select At the top of the Firefox window, click on the . menu and select
Click the menu button and then click ExitQuit .
- Locate and delete the file xulstore.json (or rename it, for example, to xulstore.jsonOLD, to keep the old file as a backup).
- You can close the profile folder and open Firefox now.
Solution 2: Refresh Firefox
If you don't want to try the first solution or if it didn't work, the Firefox refresh feature will automatically restore default toolbar settings and browser window size or position, and will also remove add-ons (extensions and themes) that could be interfering.
- Click this Refresh Firefox button directly, if you are viewing this page in Firefox.
This won't work if you are using a different browser or on a mobile device.
- You can also find a Refresh Firefox button at the top of the Firefox about:support Troubleshooting Information page.
- To continue, click in the confirmation window that opens.
- Firefox will close to refresh itself. When finished, a window will list your imported information. Click and Firefox will open.