Yeah, it's awfully broken:
1) The Multifactor popup is blank, and I have to right-click it so Firefox will show the window contents
2) Right-clicking on site name so I can choose Copy Password doesn't work anymore, I have to edit the entry so I can copy the password
3) Clicking on the browser extension icon doesn't work for Private windows
4) I can't never tell if I have the latest version because the version numbers on addons.mozilla.org and lastpass.com/download often don't match, the release notes are not updated as soon as a new version is released, and the version number shown by Firefox's Addon Manager (currently 126.96.36.199) doesn't match the other version numbers (v4.2.3 / v4.2.3a).
And the recent 100% price increase makes my tolerance for these bugs much lower. 1Password is getting more and more attractive to my eyes (and wallet).