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Can't Delete Firefox History of 6 Months or Older

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  • 1 has this problem
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  • Last reply by FredMcD

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Hello, I'm having trouble deleting my History because whenever I right click the history. I tried doing clear recent history and deleting everything with Cookies, Browsing & Download History, Cache, Form & Search History Ticked, but a portion of the History remains undeleted. Additionally, recently visited sites don't show up in my History at all and has since stopped listing website visits for like a month ago.

Hello, I'm having trouble deleting my History because whenever I right click the history. I tried doing clear recent history and deleting everything with Cookies, Browsing & Download History, Cache, Form & Search History Ticked, but a portion of the History remains undeleted. Additionally, recently visited sites don't show up in my History at all and has since stopped listing website visits for like a month ago.

Modified by Karsten

Chosen solution

If you have sync, and there is a problem anywhere, Shut Down Sync Immediately On All Devices to prevent the problem from spreading. Once the problem is fixed, perform the same repair on all computers/profiles before using sync again.


[v57+] Places Maintenance is built into Firefox.

Type about:support<enter> in the address bar.

You will find Places Database near the bottom. Press the Verify Integrity button.

If any errors are reported, check this link: https://support.mozilla.org/en-US/kb/fix-bookmarks-and-history-will-not-be-functional

The places.sqlite file contains your History and Bookmarks. And it looks like it is corrupted.

Type about:support<enter> in the address bar.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Locate the above file. Then rename or delete it. Restart Firefox. The browser should then create a new place.sqlite and recover your bookmarks from the backup files.

Note: Your history is not backed up and will be lost.

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All Replies (1)

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Chosen Solution

If you have sync, and there is a problem anywhere, Shut Down Sync Immediately On All Devices to prevent the problem from spreading. Once the problem is fixed, perform the same repair on all computers/profiles before using sync again.


[v57+] Places Maintenance is built into Firefox.

Type about:support<enter> in the address bar.

You will find Places Database near the bottom. Press the Verify Integrity button.

If any errors are reported, check this link: https://support.mozilla.org/en-US/kb/fix-bookmarks-and-history-will-not-be-functional

The places.sqlite file contains your History and Bookmarks. And it looks like it is corrupted.

Type about:support<enter> in the address bar.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Locate the above file. Then rename or delete it. Restart Firefox. The browser should then create a new place.sqlite and recover your bookmarks from the backup files.

Note: Your history is not backed up and will be lost.