FireFox cache Expiration - How can I stop it?

User Help for Mozilla Firefox

Post Posted May 23rd, 2004, 12:47 pm

I recently went to a site that had a long flash movie that I liked. It took me a long time to get it running. So, I figured that Firefox's cache worked like IE's , I thought that it would store the flash movie in its cache and never remove without me clearing the cache. So, today I went back to the site and I had to re-download the whole again. So, I typed in: "about:cache" and found the file on the cache, but it had an expiration date and it had already expired.

So, I was wondering if any of you knew how to stop the files from expiraing or how to change the expiration date.

Thankyou for your time.



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Post Posted May 23rd, 2004, 2:25 pm

you can set the cache maximum amount, but I don't think you can set the expiration date

I never used IE in my whole life hence I can't know, but I don't think it stores in cache untill you empy it.
I guess IE has a maximum too and it deletes older cached files as well.

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Post Posted May 23rd, 2004, 4:02 pm

Are you sure, because I remember sombody saying you could a while back


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Post Posted May 23rd, 2004, 4:44 pm

the web server sets the expiration date.


Post Posted May 23rd, 2004, 5:05 pm

But is there a way to change the date? Becuase I remember somone posting about an editor.

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Post Posted May 23rd, 2004, 6:55 pm



Compare the page in cache to the page on the network:

1 = Every time I view the page
0 = Once per session
3 = When the page is out of date (default)
2 = Never ... prefs.html


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Post Posted April 3rd, 2009, 8:39 am

sorry to bother theurs but that's incorrect.


to avoid to mark the cache entry for deletion.
maybe this help you.

and this addons

Cache Fixer

Better Cache


this extensions are a must have for enhancing the speed of the web surfing and overide the default or web server expiration date of the cache entry. giving a lifetime up to one week (604800 seconds)

to install them in minefield you must enable the installation of incompatible addons and disable checkupdate security for extensions

creating this.

extensions.checkCompatibility boolean false
extensions.checkUpdateSecurity boolean false

and that's it!

take care everyone

email me to discuss this further.

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Post Posted April 3rd, 2009, 8:48 am

You are replying to an elderly thread (2004). Locking.
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Post Posted April 3rd, 2009, 2:43 pm

jadjkorn64, please do not suggest to regular Firefox users to use a unstable developmental build like what your using. Also none of the regulars here does email support.

Also as this thread was from five years ago, as Preferences can come and go, be disabled or taken out.

Also how can you be right when browser.cache.check_doc_frequency was correct and there is no real easy to find documentation on browser.cache.disk.doomEntriesIfExpired in

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