[Firefox] How to fix Live HTTP Headers "Replay" Button

Seemed f*cking Mozilla did some shits in our Firefox... You got stuck in the "Replay" button in Live HTTP Headers.

Watch it and fix it :)

Trick of the video clip :)

Go to:
C:\Users\****\AppData\Roaming\Mozilla\Firefox\Profiles\qvhhrf1e.default\extensions\{8f8fe09b-0bd3-4470-bc1b-8cad42b8203a}\chrome\livehttpheaders.jar

Open it with WinRAR then open the file \content\LiveHTTPReplay.js by Notepad++

Find: "replay.headers"


Then delete ";" and fix into " + "If-Modified-Since: *\n";"

#V1RUS4