For Internet Explorer
Tools > Internet Options > Delete Temporary Internet Files
Tools > Internet Options > Delete Cookies
For Mozilla Firefox
Tools > Options > Privacy > Show Cookies button > Remove All Cookies
For Google Chrome
Menu > Settings > Clear Browsing Data button > Select: Cookies and other site and plugin data > Select: Cached images and files > Clear Browsing Data button
Safari > Preference > Select: Advanced tab > Select: Show Develop menu in menu bar > Develop > Empty Caches
Close all browser windows once these steps have been completed. Re-open the browser, log in to the application, and repeat steps where the error previously occurred.
HINT: Browser add-ons or extensions (e.g. ad-blockers, pop-up blockers and toolbars) may restrict actions. Try disabling add-ons or extensions and re-attempting your action.