Someone more knowledgeable will no doubt provide an answer. Meanwhile may I ask the full names of the files ? ''places.sqlite'' for instance is the history and bookmarks database. I think ''sqlite-wal'' are related working files (Write Ahead Log) but there are also other databases. Please also paste your troubleshooting information into a post * see [[Use the Troubleshooting Information page to help fix Firefox issues]]

You can check for problems with the places.sqlite database file in the Firefox profile folder. *http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox *https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file ---- Create a new profile as a test to check if your current profile is causing the problems. See "Creating a profile": *https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles *http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues If the new profile works then you can transfer some files from an existing profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem. *http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox