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Want to block tracking for speed (page loading) more than privacy. Will it help? What are appropriate addons?

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When loading pages, new sites off of Google new for instance, I notice that the page takes a very long time to load while analytics load for google, facebook, advertisers, etc, in the bottom left of the screen. It seems to have gotten much much worse in the last couple of years. The pages load MUCH faster with javascript disabled. But too many other web functions require javascripting to leave it off permanently.

Would a Firefox add-on help speed things up a bit by blocking tracking/analytics? Would it disrupt too much other content/service?

Thanks.

When loading pages, new sites off of Google new for instance, I notice that the page takes a very long time to load while analytics load for google, facebook, advertisers, etc, in the bottom left of the screen. It seems to have gotten much much worse in the last couple of years. The pages load MUCH faster with javascript disabled. But too many other web functions require javascripting to leave it off permanently. Would a Firefox add-on help speed things up a bit by blocking tracking/analytics? Would it disrupt too much other content/service? Thanks.

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I didn't see an 'edit' option for the post. Incidentally I'm using three separate laptops and a desktop for internet so the question is somewhat platform independant.

Also, I'm only concerned, at this point, with this issue where performance is concerned, and not with privacy or revenue considerations.

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NoScript extension:
https://addons.mozilla.org/en-US/firefox/addon/722
http://noscript.net/

It is a royal pain to use until you get it setup for all your commonly visited website - there's a steep learning curve with NoScript, but I wouldn't surf without it.


If you are not already blocking advertisements, you might want to consider AdblockPlus and a good filterset.
AdblockPlus
https://addons.mozilla.org/firefox/1865/
Also, read this:
http://adblockplus.org/en/getting_started

I keep a default version of Firefox installed to refer to so I don't forget what the average user has to deal with, when I am doing "support". It really irks me when web page loading is delayed while waiting for a a slow "ad server" to decide which advertisement it is going to load for me for that web page visit.