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In Firefox you can limit the amount of data that's allowed to be stored in the local cache, or you can let Firefox manage it.

Is there was a way to set it to not cache anything from certain sites - like sites you were working on developing so that you always got the most recent updates?

If this isn't available in Firefox is there an alternative way to do this in Chrome ?

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Why don't you use Private Browsing for those sites? – user151227 Apr 15 '13 at 17:46
Can i have a setting that says 'if i visit then view it in private automatically' or do i have go into private mode manually each time ? – sam Apr 15 '13 at 17:50
I don't know about a setting but you could use the command line this way: firefox -private in Linux or firefox.exe -private in Windows. See Command Line Options for details. – user151227 Apr 15 '13 at 18:33

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