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wot mrt-prodz dnja Sept. 21, 2014 ·

Great Add-on, I'm using it since a couple years now and it's really useful to replay/change HTTP header requests. Since the replay button stopped working with the new Firefox versions I decided to have a look at it and found a temporary fix. If you add in the header this field it should work: If-Modified-Since: *

I made a quick 'how to' in order to patch the add-on yourself and add the field automatically while some update (hopefully) will be released: http://www.mrt-prodz.com/blog/view/2014/09/fixing-live-http-headers-017-add-on