Technology Insights

Firefox Cache Location, View And Edit Firefox Cache Using Only Firefox

Earlier tonight I was making some modifications on a web site I helped build and needed to verify that some things were not being stored in the cache. At the time I was testing the site with Mozilla Firefox version 3.5.7 and needed a quick way to open cache history and verify one specific file was not cached. Below is a brief explanation of how to use Firefox to verify its own cache and steps on how to verify a file in cache and then delete that same file from the Firefox cache.

Technology Insights

How to Test Disk Input and Output on Linux

There are a couple useful utilities on Linux to test disk input/ouput.

Sequential Disk Access: hdparm

The hdparm command will test sequential disk access and can be used with the below command. Replace /dev/sda1 with the mounted disk you would like to test such as /dev/hda1.


  1. hdparm -t /dev/sda1

The results will output similar to the below.