A extension to autoconvert timestamps on a page to human readable format
Personally, a irritating problem I encountered while debugging through logs was trying to understand the time of a log. It was painful to copy the timestamp and then convert it to get the actual time. This extension fixes this by transforming the timestamps on the page, so you can navigate through your logs without any problems.
You can set the formats you want to see the date(time) in and also choose a range between which you want the dates to be auto formatted. Also, you can conveniently disable this extension for certain sites.