What does the number in the Lastpass Icon mean? How do I disable the numbers in the Icon?
The number at the icon indicates how many accounts you have saved for the particular website you are currently visiting. If you click on the icon, you will note that this number reflects the number for 'Matching Sites.'
To disable this feature, go to your LastPass Icon > Preferences > Notifications > uncheck 'Show Matching Sites Count in Toolbar'