Source Speed Up Firefox By Limiting The History
The Firefox web browser will save visited websites for a minimum of 90 days and a maximum of 180 days in the Firefox history by default. The hard limit is set to 40000 websites that are stored in the History. When that limit is reached old history entries will be deleted from the database that contains all the visited websites. Some users have experienced massive startup problems if their Firefox history database contains lots of entries.
Some users, especially those with the Google Toolbar installed, experienced a huge history database that had a size of several hundreds Megabytes. A good way of speeding up the Firefox web browser is to limit the history that it records.
The Firefox web browser will save visited websites for a minimum of 90 days and a maximum of 180 days in the Firefox history by default. The hard limit is set to 40000 websites that are stored in the History. When that limit is reached old history entries will be deleted from the database that contains all the visited websites. Some users have experienced massive startup problems if their Firefox history database contains lots of entries.
Some users, especially those with the Google Toolbar installed, experienced a huge history database that had a size of several hundreds Megabytes. A good way of speeding up the Firefox web browser is to limit the history that it records.