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Tasks have disappeared.

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  • 2 have this problem
  • 2 views
  • Last reply by Toad-Hall

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A lot of my tasks have disappeared from the Tasks list. I definitely did not delete them. Whereabouts do I find them in the profile and how do I restore them? It is the second time this has happened. Do i need to reinstall Thunderbird? Thanks in anticipation.

A lot of my tasks have disappeared from the Tasks list. I definitely did not delete them. Whereabouts do I find them in the profile and how do I restore them? It is the second time this has happened. Do i need to reinstall Thunderbird? Thanks in anticipation.

All Replies (2)

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What happens when you try these options:

In the Today Pane: right-click in the Task area and select "Filter Tasks." select "All,"

In Tasks list - Events and Tasks > Tasks Left pane will now have 'Show' above the calendar list. Click on 'Show' to see the list of options. - Select 'All'

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If the first comment did not work, then please try the following:

  • Menu app icon > Help > Troubleshooting Information
  • Under 'Application Basics' - Profile Folder - Click on 'Open folder'

A new window opens showing the contents of your 'profile name' folder.

  • Exit Thunderbird if running....this is important
  • Click on 'calendar-data' folder to see contents.
  • Copy local.sqlite file and put copy onto desktop.
  • In calendar-data folder - Rename 'local.sqlite' to 'local.sqlite.bak' -

Download install addon - Firefox sqlite DB manager add-on into Firefox browser.

  • Start the addon - you should see a new icon on the toolbar near the menu app icon - hover over icon and it will say SQLite Manager - click on it.

Use addon to open the desktop copy of the local.sqlite DB

  • drag the desktop copy of 'local.sqlite' into the opened addon.

run two SQL queries - you type this in the yellow area

Searched for items with null id:

  • SELECT * from cal_events WHERE id IS NULL LIMIT 100

If you find any... So then use the following to deleted it:

  • DELETE FROM cal_events WHERE id IS NULL
  • Save the database file, 'Save' located at the bottom - save is usually saved in the 'Downloads' folder.
  • Access the 'Downloads' folder to locate downloaded saved version of 'local.sqlite'.
  • put the saved 'local.sqlite' back into the 'calendar-data' folder

restart Thunderbird and report on results.