0x00 event
FF is the author of the main browser, a DNS cache problems encountered today: After I changed to resolve a domain name, over a period of time that DNS is not updated when FF browser, then refresh the DNS caching system, then access time still not properly resolve to address;
Then I use Chrome to access, correct able to access the address. This is to determine the DNS cache issue FF, so I am surprised that the restart FF is also invalid.
Then I check some information to solve this problem.
0x01 solve
Click on Firefox at the top left of your browser, go to the History menu, select Clear Recent History and check all boxes. Under Time range to clear select Everything (except passwords, if desired) and click Clear Now.
Click on the upper left browser Fire fox corner, go to the "history" menu, select "Clear recent history" and check all the boxes. Under "Time Range to Clear," select "all" (if required, except for the password), and then click the "Clear Now."
In fact, if you do not want to clean up all the records, based on your recent browsing can also clean up time, the author is the default clean-up "within an hour" of the record, and then access the domain name has been properly resolved.
This post also posted other browsers clear the DNS cache method: How to the Clear at The DNS Cache?