Firefox 3.5 zero-day flaw fixed in Firefox 3.6 | Internet News

Firefox 3.5 zero-day flaw fixed in Firefox 3.6

Jul 16, 2009
1 minute read
sr-firefox3.jpg

From the

no that’s not a typo

files:

On Tuesday, I wrote about the new critical 0-day flaw that is now publicly available for Firefox 3.5.  As of 10 AM ET today there is no publicly released fix for regular Firefox 3.5 users, but users of the next generation Firefox 3.6 browser are already covered.

Huh?

Mozilla staffer Daniel Veditz commented on the Mozilla security blog that the Tuesday nightly build of Firefox 3.6 had a fix in it for the critical JavaScript flaw. Firefox 3.6 currently has a pre-alpha build as well as a nightly build available that is updated (by definition) every night.

“It was checked in
yesterday, a few hours _before_ we learned of the milw0rm posting,” Veditz wrote. “This
fix was going to be in the 3.5.x update we had scheduled for the end of
July, but obviously now we have moved up the schedule for release.”

Considering that the JavaScript attack has now been weaponized on Metasploit and there are millions of Firefox 3.5 users (likely not millions yet for the 3.6 nightlies) – the obvious questions to ask is why 3.6 first?

Internet News Logo

InternetNews is a source of industry news and intelligence for IT professionals from all branches of the technology world. InternetNews focuses on helping professionals grow their knowledge base and authority in their field with the top news and trends in Software, IT Management, Networking & Communications, and Small Business.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.