Just a reminder to be courteous and try to respond to a member's request within 48 hours, even if it is to let them know you are unable to help them out at this time. And another tip, you are more likely to be contacted for an exchange if you add a service description.
Safari and FireFox do not auto refresh content.
If you don't see your changes force a page refresh.
You could also perform a browser fix:
1. Type about:config into the location bar and press enter
2. Accept the warning message that appears, you will be taken to a list of preferences
3. Locate the preference browser.cache.check_doc_frequency, double-click on it and change its value to 1