compatibility with mozilla firefox

Hello ?,
 
Welcome to the Webroot Community,
 
To try to resolve it you can try running the Toolbarfix tool.  You can download it for here.  Once downloaded launch it by clicking on the executable, and you should see the following, and you should click on 'Run':
 
 

 
which should then take you to the following dialog:
 

 
on which you should choose/check the option 'Repair/Install the Webroot Toolbar' and then press 'Start'.
 
That should initiate the fix process and you just have to wait for it to finish, close the dialog and then check in your browser to see if the Password Manager Toolbar icon is now visible.  If the fix has been successful you should see the following greyed out icon in a toolbar at the top of the IE browser page:
 

 
One then double clicks on that so that the login dialog is presented, etc.
 
OR if until the problem has been fully addressed and corrected, here is a workaround that will get the Password Manager up and working for you.
 
 
Please check the above out and come back if anything is not clear or if it does not help.
 
Kind Regards,