This appears to be a legit company, which claims to be " the world's #1 password manager". Like there's a chance in hell I'd ever store my passwords in "the cloud" (meaning some shared server in India).
 
I'd not heard of them until today, when suddenly a page opens up automatically in both Firefox and Chrome encouraging me to click a big red button that says "protect my passwords for FREE now". How the hell did they hijack both browsers? Do they have a deal with google (my home page)? How do I kill it (it's not configured in my Chrome or Firefox options)?
 
I've got enough on my plate already, trying to get my laptop set up so I can conduct my business after the theft of my primary desktop machine. Any ideas on WTF is going on here?

Bitdefender prevents this for me...I love it...

That's what you need a BIT Defender! 

I would not go back to Bitdefender for any reason.  It worked very poorly for me and the money back guarantee thing is a total scam - still have a pending credit card dispute active on that payment.
 
I think the best advice I ever heard on protection software is to just have malware prevention software do only that.  Don't have it try to do things like password management, for example.
 
I tried the free LastPass password manager and love it (I use W7 and mostly IE).  I would not hesitate to recommend it to anyone.

I've had nothing but astonishingly GREAT results with 
Bitdefender Total Security.  I have it on 3 PC's and they
all have been COMPLETELY virus and crap free for 5 years now...

No complaints here...

Sorry you have a bad experience DM....but
I think there was some other problem besides Bitdefender...
I could be wrong...but I've used it for 5 years without
a SINGLE solitary issue ever...

I'm pretty sure I had that page automatically appear yesterday when I opened Chrome. I didn't really stop and read what it was for but it had a big red icon and was something to do with either passwords or bookmarks. It flummoxed me for a second and then I figured that maybe it was something affiliated with Google. 

I use the freebie Firefox plugin Ghostery, and it does a good job of intercepting most of the more obnoxious ads.

It could be malware masquerading as Dashlane, hoping you won't notice it isn't legit and feed it a password or two, or something similar. I'd check and see what extensions or add-ons Chrome and Firefox are using, see if there is anything suspicious there.

Although you have to be careful with the installation of Iobit products so as not to sign up for more crap, the Iobit Uninstaller is a good program to do a couple things after the fact. It's main function is to get rid of residual garbage left by normal program uninstalls.
 
There is a cleanup function for browsers that identifies and deletes aps that have invaded the program with hijacks and diverts. This has bailed me out on many occasions. Think this link will wander around to a download. Free version is adequate. Good luck.
 
http://www.iobit.com/en/advanceduninstaller.php
 
John
 
 

I discovered that this crap had automatically installed itself, both dashlane.exe and a "dashlane update service". I uninstalled both and so far they seem to be gone. I'm thinking it may have piggybacked onto an automatic Chrome update. I have since found that Dashlane is widely considered malware, not because the program itself is evil, but because the price of a "free" subscription is popup ads. Despite this reputation, I had to page through four pages of Google results before I found any reference to Dashline that wasn't an advertisement or a positive review. Could they be a Google affiliate, and Google is censoring negative references?

dashlame