All of a sudden my bookmarks and history have disappeared and I cannot add new bookmarks. I have researched this and tried everything I could find to fix - namely restarting FF, restarting the PC, renaming places.sqlite, using task manger to locate which app is locking the file. I also used the Places Database to Verify Integrity and here are the results: Task: checkIntegrity - Unable to fix corruption, places.sqlite will be replaced on next startup > Task: checkCoherence - The task queue was cleared by an error in another task. > Task: expire - The task queue was cleared by an error in another task. > Task: vacuum - The task queue was cleared by an error in another task. > Task: stats - The task queue was cleared by an error in another task. > Task: _refreshUI - The task queue was cleared by an error in another task.

Nothing has worked. Help!