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can you hel me! please solve my problem

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why i can't run my firefox correctly. it's very difficult for me. https://support.mozilla.org/en-US/kb/fix-bookmarks-and-history-will-not-be-functional?redirectlocale=en-US&redirectslug=The+bookmarks+and+histo

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Please explain the problem in detail. What happens? Error messages?

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What security software do you have?

The article you posted above is about the places.sqlite database that is possibly being locked or opened by other software on your computer.

Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.


If you use Sync then best is to disconnect Sync temporarily during troubleshooting.

You can check for problems with the places.sqlite database (bookmarks and history) in the Firefox profile folder.

  • use "Verify Integrity" on the "Help -> Troubleshooting Information" (about:support) page

See also:

If "Verify Integrity" on the "Help -> Troubleshooting Information" (about:support) page cannot repair places.sqlite then remove all places.sqlite files in the Firefox profile folder. Firefox will rebuild places.sqlite and restore the bookmarks from a recent JSON backup in the bookmarkbackups folder.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.


You can create a new profile to test if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.