If you try to revisit some website and find the same content without any update, you should not guess that there were no changes made in the site because the reason behind this would be many. There would have been many changes in the website you recently revisited but you may not see them since the previous version of the website is stored in your local cache and unless you delete it , you cannot view the latest version.

You can directly do a force refresh in your browser using short cut keys like ‘Ctrl + F5’ in Firefox. Normally if you press F5 key in firefox, the browser tries to load the cache copy if available first, if not seeks for a new version, but a force refresh can help you in ignoring the local versions.
You can also delete all your cache files by selecting ‘Clear Private Data’ option under your ‘Tools’ menu in firefox.
And FF shortcut for clear private data is Shft+Ctrl+Del… I do it most of the time, Also it is done when my ff is closed…
It is not the same case with IE…
@Pavan you are right we can set Firefox to clear cache when we close Firefox pavan we can do set clear temporary cache to clear in IE check this http://computersservicing.blogspot.com/2008/07/clear-temporary-internet-files.html ,Amit I learned a new shortcut to know the updated content in the site thanks.Amit I faced this problem in Chrome ,as it shows web pages from its cache I never experienced this with other browsers.
Hello amit,
Nice tips..and find a way to Clear FF3 URL history..Still it seems annoying and affects users privacy 🙁
@Selvam clearing private data clears Browsing history including you previously typed URLS,is that what you asking for.
@Venkat : Yes the Same..Clear the list of Typed URLs from FF3..Even i am using CCleaner to delete cookies and so on..