My ISP blocks websites from time to time. Recently I cannot access https powered sites.
Firefox cannot load https://ajax.googleapis.com/.../jquery.min.js ...
But I can still access http://ajax.googleapis.com/.../jquery.min.js ...
I notice that: If I access the https resource, firefox cannot load from http-cached files.
Is there some kind of tool/method to maniplate firefox caches.
I want to add https://.../jquery.min.js to firefox cache database manually.


I use a foreign proxy to fix the problem. (Firefox+FoxyProxy)

  • A work around maybe greasemonkey
    – Dave
    Jun 17, 2014 at 7:08
  • @DaveRook Some https requests are from another js files. Simply changing the src attribute of <script> tags is not enough.
    – kev
    Jun 17, 2014 at 8:09
  • I never said you would be changing the source attribute of script!
    – Dave
    Jun 17, 2014 at 8:20
  • @DaveRook Thanks for your advice, I'll try it.
    – kev
    Jun 17, 2014 at 8:31

2 Answers 2


I searched over and found no ready-to-use library or add-on. Basically one can add or edit cache entries, by editing raw cache structure (_CACHE_MAP_, _CACHE_001_, ...), but this is not trivial.

These are useful link for parsing a cache directory:


You can completely disable cache with Web Developer extension - https://addons.mozilla.org/bg/firefox/addon/web-developer/ ..or you can download whole website for offline use - https://addons.mozilla.org/en-US/firefox/addon/scrapbook/

  • I also have thousands of unrelated answers... Aug 16, 2014 at 10:49

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