Firefox has slowed to a crawl after updating Norton Security.

Updated to the latest version of Norton. FF hung up (msg "not responding") whenever a new tab was opened. Refreshed ff.; now the tabs work fine, but FF is extremely slow. Pages that allows to takt a second or less load now take two to ten minutes.

For problems with the file places.sqlite (bookmarks, historical) database, you can check in the Firefox profile folder.

If the extension of Maintenance of places cannot repair the database places.sqlite file remove all places.sqlite files in the Firefox profile folder to rebuild the database places.sqlite latest JSON Firefox backup in the folder bookmarkbackups.

You can check for problems with the sessionstore.js file in the Firefox profile folder that stores the session data.
When sessionstore.js is deleted, you lose App Tabs and groups of tabs and tabs open and you will have to recreate them, so possibly make a note or bookmarks.

You can use this button to go to the current Firefox profile folder:

Tags: Firefox

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