Brandon Sterne
One of the new features in Firefox 4 that we are very excited about is Content Security Policy, which is a mechanism that works behind the scenes to prevent some of the more severe web-based attacks against users and websites. … Continue reading
Sid Stamm
There have been a number of reports about a new Firesheep tool that exposes a weakness in website security, letting attackers snoop on people using public networks, steal their cookies, access their accounts and pose as them on sites such … Continue reading
Sid Stamm
One of the security enhancements included with Firefox 3.6.9 is support for the x-frame-options header. This optional header can be included within the HTTP response to instruct the client’s browser on whether the returned content is allowed to be framed by other pages. Continue reading
Sid Stamm
A while ago, we talked about Force-TLS that lets sites say “hey, only access me over HTTPS in the future” and the browser listens. Well, this idea has been solidifed into a draft spec for HTTP Strict Transport Security (HSTS) … Continue reading
Lucas Adamski
Mozilla has accelerated its timetable and released Firefox 3.6.2 ahead of schedule. This release contains a number of security fixes, including a fix to Secunia Advisory SA38608 which was previously discussed on this blog when we were first made aware … Continue reading
Lucas Adamski
Mozilla is aware of the claim of a zero-day in Firefox as posted here: http://secunia.com/advisories/38608/. We cannot confirm the report as we have received no details regarding the reported vulnerability, such as a proof-of-concept or steps to reproduce. We’ve attempted … Continue reading
Johnathan Nightingale
[This post originally appeared on Mozilla Developer News] We hate crashes. When Firefox crashes, we try to get you back on your feet as quickly as possible, but we’d much rather you not crash in the first place. In Firefox … Continue reading
Johnathan Nightingale
Mike Shaver has posted an update on the situation surrounding our blocking of the .Net Framework Assistant and WPF plugin. In it, he discusses the current state of affairs, the series of events that got us to this point, as … Continue reading
Johnathan Nightingale
A little over a month ago, I talked about a project we had started to inform users when their plugins were out of date. This is a really important project for us, because old versions of plugins can cause crashes … Continue reading
Brandon Sterne
As we mentioned earlier we’ve been working for the past few months on turning the Content Security Policy specification into working Firefox code. (You’ll remember that CSP is a framework to protect websites from XSS and related attacks). We are … Continue reading