You can avoid clearing the entire cache by reloading the current page, overriding the cache. There are three ways to do this — pick one: * Press '''Ctrl + F5''' * Press '''Ctrl + Shift + R''' * Hold down the '''Shift''' key and press the '''Reload''' button on the right of the address bar. To clear the cache, # Press the Firefox button in the top left corner of the window. # Place the mouse cursor over the History menu, but do not click that entry. # From the History menu, click '''Clear Recent History'''. # In the Clear Recent History window, select Time Range: Everything, then in the Details box uncheck every item except '''Cache'''. # Click the '''Clear Now''' button. ---- As for the issue of your Options window not working properly, I suggest first starting Firefox in Safe Mode to check if one of your add-ons is to blame. * [[Troubleshoot Firefox issues using Safe Mode]]

thanks Gingerbread_Man, Ctrl F5 did the trick for me!