Updated Firefox, Lost No-Script, Got Virus T_TFollow

Strangest thing. Firefox automatically updates to 3.6.18 just the other night, and this afternoon I clicked on a random google link, and suddenly Security Protection (defender.exe) installed itself on my computer and shut me down for a couple hours while I had to remove it.

Somehow, no-script was uninstalled during the update, and an ad installed this annoying little piece of malware (not an allakhazam ad, something from google).

Once I finally got the malware removed, I checked out Firefox to figure out how it got through. No-script wasn't installed (stupid update) yet when I did install it, it remembered my previous settings...

I guess I'll have to be more attentive when firefox automatically updates. Strange how it never disabled no-script before during an update. Firefox made me lazy when it comes to my browsing habits.

Edited, Jun 27th 2011 10:00pm by TirithRR

Probably, Firefox doesn't auto-update to major revisions. I never updated to 4 when it was in the beta/rc versions.

But Firefox 3 is still getting updates. So it still automatically downloads and installs them with your permision.

I have it enabled (have had it enabled since day 1 with firefox). It still doesn't automatically update major revisions. If I press the "check updates" it asks me if I want to download the 5.0 update. It will install the minor updates (security updates, etc) automatically.

I use AVG, have Spybot running, malwarebytes, ccleaner, and hijackthis for cleaning up remnants, etc.

The only thing that caught this one was my firewall warning me that it was trying to connect to the outside world. AVG and Spybot didn't seem to care, lack of no-script apparently let firefox automatically install it.