Setting browser.cache.check_doc_frequency = 0 doesn't work
Setting the value of property browser.cache.check_doc_frequency to 0 has no effect. After restarting my browser all items still coming from the local cache. btw. if I set the value to 1, it works as described here
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I got the same result as you so I filed this bug report https://bugzilla.mozilla.org/show_bug.cgi?id=736230
You can only make that work if you use Clear Recent History to clear the browser cache when you close Firefox.
That will make it impossible to retrieve the page from the local cache.
The above mentioned pref only seems to have effect if you visit the website and not when you restore a tab with the page.
- Tools > Options > Privacy : History: [X] Clear history when Firefox closes > Settings
- https://support.mozilla.org/kb/Clear+Recent+History
I noticed while looking for an answer for question 907374 that Firefox has different load types and each load type sets different loadflags. These loadflags determine the exact loading behaviour. The preference is only used with some load types, sometimes it gets ignored. So the documentation for the preference is not correct.