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How can I prohibit access to all sites in Google Chrome, except for one or two sites?

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This is better done within your router or via 3rd party software as it is not the browsers job to filter traffic. – Aaron McIver Jan 13 '11 at 15:00
    
You may also want to look at the various questions tagged parental controls – nhinkle Jan 14 '11 at 4:58
up vote 8 down vote accepted

Not too nice, but if you can somehow ensure folks won't change the settings:

  • Make your internet settings use a non-existing proxy server (like "localhost");
  • Add exceptions for the few sites you want to allow.
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I like this idea. I was trying to figure out a way to prevent my young kids from browsing too deep into the web. I know they don't know how to change the settings yet. – Mike Wills Jan 13 '11 at 14:42
    
yet..., @Mike ;-) Or know how to use a different browser? – Arjan Jan 13 '11 at 14:48
    
The proxy is all OS based..the browsers goal is not filtering traffic. If you modify the proxy settings in Chrome it is nothing more then a redirect to the OS based proxy settings. – Aaron McIver Jan 13 '11 at 14:59
    
True, @Aaron. Firefox allows for its own settings (or none, or the system wide settings), so Firefox could use different settings than the fake settings for Chrome (and IE). Still, I agree very much: not too nice... – Arjan Jan 13 '11 at 15:01
    
I should clarify, on my Chrome OS laptop. Yes, I realize that they could work around it. – Mike Wills Jan 13 '11 at 15:08

OpenDNS has web content filtering, even in the free version. The free version supports up to 25 blacklist/whitelist items. As an extra, you'll get phishing and botnet protection and your web browsing may also receive some extra speed!

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Back these days, I used Privoxy:

Privoxy is a non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk. Privoxy has a flexible configuration and can be customized to suit individual needs and tastes. It has application for both stand-alone systems and multi-user networks.

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