Rated 4 out of 5 stars

Yeah, I tried dashlane for about 2 days, took me that long to realize LastPass wasn't so bad after all. Sure, LP has its quirks when Firefox suddenly decides to change their game and security-protocols change and such, but that is to be expected and isn't something to blame on LastPass, they'll always be running behind. Anyway, long story short:
I've been a LastPass user for almost 10 years when I got fed up with the annoyances in Mozilla Firefox and decided to try 1Password and dashlane and even Kee (with KeePass). Turns out LP quirks are still very minor compared to the annoyances with dashlane and all the hyped up managers. Take it from me;
Sorry, you need way more work and years of experience with user-feedback to beat LastPass at this game. They're miles ahead of dashlane and 1password.

If you want true stability with passwd management, use the ESR of Firefox ( https://www.mozilla.org/en-US/firefox/organizations/ ) on Windows 7 x64, don't expect reliability when you're on Microsoft's live test-team (i.e. using Windows 10) or using cutting edge barely tested new browser versions, like FF Quantum, even.

This review is for a previous version of the add-on (4.9.2.0). 

Crucial and the ultimate safety companion! Rated 5 out of 5 stars

Flawless functional add-on, uses pre-internet encryption, very heavy unbreakable keys stored where they need to be stored. NSA must hate these developers! Generates passwords that are *as robust as you set them to be*. They can not be any less robust than what you would make up on your own, in most cases the generated passwords will be A LOT better than what you currently use for your valuable log-ins.
Have tested this to the bone using wireshark and other tools, since it's closed source (for the most part). It ends up being the best out there. Simply unbeatable. A life-saver. Best of all: You can't lose your stuff, not even when they stop existing.

This review is for a previous version of the add-on (1.90.6).