Imagine you have a browser I in your desktop pool X installed and configured in the parent VM or template. Let us say you are the vmware technical support team and you know that the most used site is google to search information online. When all the consultants (may be 100 of them) are googling for something then their bandwidth consumption is not just the search query+results but also the google's tracking tool which tracks the user, many other ads on the sidebar and also the first few results are ads too. When techs go to different sites the webpages will also contain flash, scripts, images, ads, trackers, social networking buttons and many more and all your 100 consultants are unknowingly being tracked, bombarded with ads and moreover they are consuming bandwidth unintentionally causing the deterioration of the bandwidth efficiency. Let us take scenario.
Imagine a browser F in your desktop pool Y installed and configured in the parent VM or template. This browser has been modified and configured in such a way that it blocks unwanted flash/scripts,images,social networking buttons/trackers/ads from untrusted sites and thus when your 100 or more engineers use their web browser to get some information their webpage opens pages faster now (it may start up a little late thought) without the unwanted flash/scripts or any of those distractions. If the user chooses to then they may disable these features for particular sites or for the entire internet. This will make sense especially when you are not just looking at performance or bandwidth saving but more importantly user experience. Users now have a cleaner webpage, just what they want and the rest being blocked which again can be viewed if they choose to. There are a lot of articles and sites informing us to optimize the parent desktop image for best performance but the same optimization for the browser might also be necessary. Please refer http://ambitech.blogspot.in/2013/09/browser-optimization-for-vmware-view-5x.html for a little more detailed rambling.