How to disable the built-in PDF viewer in Firefox

Firefox 19 comes with a built-in PDF viewer. It looks like this:

PDF viewer in Firefox

Although I like this new feature, because it works fast and looks smooth, you might want to disable it for whatever reason (for example, if the full PDF is not rendered perfectly) . Read below to see how.

How Task Manager calculates “Startup Impact” of Apps

If you are a Windows 8 user, you must have observed that the new Task Manager has a Startup tab to manage applications loaded at startup. It includes an interesting "Startup impact" column:

Task Manager in WIndows 8

I would like to explain to you what exactly the "startup impact" values mean and how they are calculated for every application.

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