Clearing the browser cache (deleting temporary Internet files) is a good way to start the browser with a clean slate. Please note that the steps are different depending on which browser you’re using.
To empty the cache in Google Chrome:
Click the menu icon (looks like three lines) in the upper-right corner and select Settings.
On the left menu column, click History.
Click Clear all browsing data.
Click to select Empty the cache.
Use the Obliterate the following items from drop-down arrow to select the beginning of time.
Click Clear Browsing Data.
Close all open Chrome windows, restart the browser, go to the sign-in page for QuickBooks Online and try again.
To clear history and cache in Firefox:
At the top left click on Firefox, from the drop down menu click the History menu and select Clear Recent History.
A pop up window will open; if a Time range to clear option is present, set it to Everything.
If a list of check boxes is not visible, click the down-arrow button next to Recent to reveal them.
Make sure there are check marks next to Browsing & Download History and Cache.
Click Clear Now.
Close all open Firefox windows, restart the browser, go to the sign-in page for QuickBooks Online and try again.
To delete temporary internet files in Internet Explorer:
Click the gear icon at the top right of the browser window.
Select Internet Options.
Under Browsing History, click Settings.
Under Check for newer versions of stored pages, click to select Every time I visit the webpage, then click OK.
Under Browsing History, click the Delete… button
Uncheck Preserve Favorites website data.
Click to mark Temporary Internet Files, then click Delete.
Click OK.
Close all open Internet Explorer windows, restart the browser, go to the sign-in page for QuickBooks Online and try again.
To empty the cache in older versions of Safari:
Open your Safari browser.
Choose Safari > Empty Cache.
Click Empty.
Close all open Safari windows, restart the browser, go to the sign-in page for QuickBooks Online and try again.
In Safari 5:
Choose Safari > Reset Safari.
In the pop-up window that appears, select Remove all website data.
In the lower right corner, click Reset.
Note: No confirmation will appear after clicking Reset; the window will disappear.
Close all open Safari windows, restart the browser, go to the sign-in page for QuickBooks Online and try again.
In Safari 6:
Choose Safari > Preferences.
On the top of the window, click the Advanced tab.
Select Show Develop menu in menu bar.
Choose Develop > Empty Caches.
Close all open Safari windows, restart the browser, go to the sign-in page for QuickBooks Online and try again.