Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

If I had two different browsers and separated their use such that I was only ever using browser A for things such as on-line banking and credit card purchases etc. And used browser B for everything else, then if browser B got had malicious scripts installed would my browser activities on browser A be safe?

share|improve this question

migrated from Dec 6 '12 at 16:48

This question came from our site for professional and enthusiast programmers.

Did you read about the recent Tumblr worm? – Rook Dec 6 '12 at 16:12
What type of "malicious installed scripts" do you mean? If you install something which gets file system access, it's your fault – Bergi Dec 6 '12 at 17:32
up vote 1 down vote accepted

Yes. Since malicious client side scripts have no direct access to the underlying filesystem or OS of the client, they can not be transmitted across browsers.

However, if you have malicious bookmarks or addons installed and voluntarily transfer them, perhaps in ignorance, then the other browser is also vulnerable.

share|improve this answer

Depends if "malicious scripts installed" are at an OS level, or at a browser level. If something infects your OS, any application is vulnerable.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.