Not perfect, but it is the best I have found, having used several others over the years

1) Integration with Firefox for Android is not existant, and the usage of the Autofill ad Accessibility features of Android does a poor job. Slow, not always recognizing the right field (I had multiple times the passoword copied in the user field), bad management of the overlay of the Last Pass boxes. A complete disaster.

2) Desktop interface, while really polished is slugghish and bugged: loading of the boxes (Autofill and Generate Password) takes several seconds (if they load at all!), multiple occasions where Last Pass did not recognized the "update passoword" fields and I had to manually change it in the vault.

Conclusion: I switched to Bitwarden.

BUGGY. Newest version slows latest version of FF down so much, I get warnings and am prompted to stop or wait to continue repeatedly. Also seeing number of saved credentials on a site that doesn't actually match what I have. Doesn't matter that I am a paying customer, either. Get this fixed, LastPass (aka LogMeIn).