I use FireFox and have been unable to use or save my bookmarks and my history also. This has been going on for 3 or 4 months. The following is the message Firefox is showing on the top of my page when trying to log onto any website. The Bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem. I know this problem started with an update, whether it be from Firefox or PC Matic. I have been tempted to remove PC Matic to see if this is the problem. Can you help me with this issue. I have no idea what to do. I do know I need my bookmarks and history.
Thank you for your help.