Are you looking for a quick and simple way to view the contents of the cache in Firefox?
Then you will definitely want to see how easy it can be using the CacheViewer extension.
Note: CacheViewer is a front-end app for easily accessing and searching the memory cache.
All three work equally well…choose the method that best suits your personal needs.
When you dive into the CacheViewer Window this is what it will look like.
you might easily scroll through the cache contents and preview images if desired as shown here.
Note: The CacheViewer can also be set to open in a new tab instead (see Options).
Options
Choose whether CacheViewer opens in a separate window (default) or in a new tab.
Link
Download the CacheViewer extension (Mozilla Add-ons)