The buttons have been changed to dual function buttons, You could use the keyboard shortcut of "F5" to refresh, or "Ctrl+F5" to reload bypassing cache. See http://mozillalinks.org/2010/09/unified-stop-reload-go-button-comes-to-firefox-4/ and item #4 in the following: You can make '''Firefox 6.0''' look like Firefox 3.6.*, see numbered '''items 1-10''' in the following topic [http://dmcritchie.mvps.org/firefox/firefox-problems.htm#fx4interface Fix Firefox 4.0 toolbar user interface, problems (Make Firefox 4.0 thru 6.0, look like 3.6)]. ''Whether or not you make changes, you should be aware of what has changed and what you have to do to use changed or missing features.'' * http://dmcritchie.mvps.org/firefox/firefox-problems.htm#fx4interface There is a lot more beyond those first 10 steps listed, if you want to make Firefox more functional. Item #31 is another example of something changed in Firefox 4 and up. <br><small>Please mark "Solved" one answer that will best help others with a similar problem -- hope this was it.</small>