Why does Firefox sometimes cache my CSS & Javascript code, even though it has changed?

Question

On my product site, Firefox sometimes \"doesnt detect\" changes in my CSS & Javascript code. Rather it loads the old versions, so it seems that I need to clear the cache

Answer 1

You can append a version at the end of the css/js you send accross.

For Example

Instead of www.foo.com/js/javascript.js, send www.foo.com/js/javascript.js?v=1 and
Instead of www.foo.com/css/style.css, send www.foo.com/css/style.js?v=1