When LastPass updates this extension to work as it does in Chrome and EVEN in MS Edge, I will give it 5 stars! Love the app, and want to be able to use it in Firefox, but there are serious usability issues:

Won't fill some banking sites info
Cursor doesn't automatically go to password when i click the LP icon.
Cursor doesn't automatically go to search box when i need to search within the Extension
No Copy Password link for each username
Have to manually copy/paste all pws for some secure/banking sites

These were all problems in MS Edge for a while, then there was an update.

Mozilla, please update this app!! We want LastPass and Firefox working together.