Privacy and Security

Archive for April, 2010

How to secure your Firefox browser

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The first thing you should do is: install the NoScript plugin for Firefox.

JavaScript could be exploited to do some nasty things to your computer. Especially on unknown websites, JavaScript could be used to redirect the page, open another browser window (which may contain malicious code), etc.

With the NoScript plugin, JavaScript will be disabled on every website you visit unless you allow the script to be executed. This makes it impossible for malicious websites to mess with your computer. Needless to say, you should only allow trusted websites to execute JavaScript. Otherwise, don’t.

I’d also disable Java, since it is rarely used anyway and it has more access to your file system — which means more risk if it is exploited.

Lastly, check for updates periodically, at least once a week. Always use the latest stable version of Firefox and your plugins.

Written by Aris

April 5th, 2010 at 9:47 am

Posted in Uncategorized

Disable Acrobat JavaScript on your Adobe PDF Reader

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If you are using Adobe PDF Reader, there is one thing you must absolutely do if you care about security.


This is very important. Even though Adobe always patches security vulnerabilities in their product, sometimes the exploit comes first and your computer could be infected by some nasty virus targeting the exploit.

The JavaScript feature is rarely used anyway. You better disable it now:

  1. Open Adobe Reader
  2. On the menu bar, go to EditPreferences
  3. Go to the JavaScript tab
  4. Untick the “Enable Acrobat JavaScript” option
  5. Click OK.

how to disable adobe javascript

Alternatively, you can use other software to read PDF files, e.g. Foxit Reader.

Written by Aris

April 5th, 2010 at 9:29 am

Posted in Uncategorized