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The worst part about web application development is the phase in the unit testing where we developers swear we've fixed something,  but still when we test the change, the fix isn't there. After awhile, we remember to clear the browser cache and we discover the fix worked!  In some cases, we really haven't fixed what we thought we fixed--and in other cases, we haven't really cleared the cache. 

I was working in FireFox recently and realized I hadn't really cleared the cache when I added a new button on a form that didn't show. I decided at that point, that I must not have truly cleared out the cache. To confirm my theory, I downloaded Google Chrome and ran the web app again. There was my new button! This sent me on a quest to clear the cache in in FireFox.

After some fiddling with FireFox, here are the steps I used to clear the cache:

   1. Opened up the FireFox browser
   2. Typed about:config in the address bar
   3. Typed ‘cache’ in the search bar, and looked for: network.http.use-cache.
   4. Double clicked  network.http.use-cache in order to set it to false. (BTW, Double clicking it again will set it to true and re-enable the cache)


This should finally eliminate old files while your testing.


Tip: If you don't want to turn of the cache in FF to forcibly reload a page and all its dependencies, direct from source, ignoring local and proxy caches-- hold the shift key and hit reload.

 

 

posted on Thursday, May 19, 2011 1:43 PM

Feedback

# re: How do I Disable FireFox's Browser Cache COMPLETELY? 8/17/2012 1:59 AM JoRJa
Thank you for tip :)
I think you mean Ctrl+F5 not Shift+F5 :)

# re: How do I Disable FireFox's Browser Cache COMPLETELY? 4/25/2013 8:14 AM raj kumar
delete cache in firefox nice sharing ..................
good ...........................

# re: How do I Disable FireFox's Browser Cache COMPLETELY? 5/22/2015 2:35 AM dim's
go tool - option - privacy and then choose never remember history

Mainan Anak


# re: How do I Disable FireFox's Browser Cache COMPLETELY? 1/2/2018 6:43 PM saytr02
gone from options not there

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