How to force Firefox not to use cached images?

Ivan, if you have "Load images automatically" selected in the Preferences Content dialog box, doesn't that do it? I don't have the problem you;re having, so if you *do* have that selected, as I do, maybe it's a server security issue rather than a Firefox thing.

Ivan, not sure how you do that exactly.

However, you can get images to reload from the server if you have the page already open, by holding the Shift key down & clicking the Reload button. Works for Safari too.

A bit laborious though if you need to do it often.

Command-shift-R is the force refresh keyboard command in Firefox. Not certain about continual reload (although there probably is a way to do it), but lowering your cache size would have the same effect. Think you might regret it if you ever do find a way to reload every image everytime. Sounds like a lot of down time to me. :-)

Perhaps you could try this add-on https://addons.mozilla.org/en-US/firefox/addon/6371
It allows you for greater control over what's cached by actually modifying http headers that are sent from the server.

Otherwise you could try modifying the Firefox config by typing "about:config" in your address bar but that is more risky and it's easier to mess things up. So I wouldn't go there without having a look at the 'cache' bit of this article http://kb.mozillazine.org/Firefox_:_FAQs_:_About:config_Entries :)

There's also the Web Developer toolkit. Under 'Disable' you can disable the cache. Might be overkill for what you want to achieve though.

Ivan,

Every time you make changes, just do a F5 and the cache will be renewed with the new content. Hope it helps.