I have a question about Clearing the Cache and Browsing History Upon Closing with Firefox. I have gotten into the Settings and have instructed Firefox to clear the cache and browsing history upon closing by going to Tools>Privacy>Clear History When Firefox Closes. From there I click on Advanced>Settings for Clearing History, where I check both Browsing and Download History and Cache.I have been careful to make sure no other setting contradicts that. Yet, if I run C Cleaner after closing my Firefox browser, it can take up to thirty five minutes for it to clear the Firefox Internet Cache, with most time taken in C:\Users\AppData\ while clearing over 9,000 files . Am I doing something wrong or is Firefox ignoring me? This has been the case with all versions of Firefox since at least Version 38.0. I'm less interested in opinions about Firefox and more interested in solving the problem. Thanks.