Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
Additional bug fixes
With the update for compatibility with Firefox 57+, some features such as 'Copy Password' will be disabled temporarily. You can see the list of those features here:
Update: Windows and Mac users can now re-enable Binary Component related features such as 'Copy Password' by downloading and running the latest Universal Installer from here: https://lastpass.com/download
Fixed: Release notes page wasn't popping on upgrade.
Fixed: Floating field icon was difficult to click on certain sites.
Fixed: Improved session handling when logging into both extension and web vault.
Improved: Faster security challenge calculations.