Retrieve updated page in Firefox
It's very annoying that your application doesn't reflect updated page on web browser even if you set headers for cache clearing. in IE you have option to enable the option of looking new page on every visit but things are not straight and easy in Firefox.
In Firefox, you have to open config page by writing about:config on Addressbar and then search browser.cache.check_doc_frequency. By default its set to 3, change it to 1 and restart the browser. The coding scheme is given below:
0 = Once per session
1 = Each time
2 = Never
3 = When appropriate/automatically